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VOA科学技术2024--Study Finds How Egg and Sperm Connect

时间:2025-01-09 02:07:46

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(单词翻译)

How a sperm and an egg come together has long been a mystery.

Now, new research by scientists in Austria provides interesting insight. It shows that fertilization works like a lock and key in animals that have a backbone -- from fish to people. Such animals are called vertebrates.

"We discovered this mechanism that's really fundamental across all vertebrates as far as we can tell," said co-author Andrea Pauli. He spoke to the Associated Press from the Research Institute of Molecular Pathology in Vienna, Austria.

The team found that three proteins in sperm join to form a sort of key that unlocks the egg. The process permits the sperm to attach to the egg.

The research findings come from studies in zebrafish, mice, and human cells. They show how this process has continued over millions of years of evolution.

The findings appear in the science magazine, Cell.

Scientists already knew about two proteins -- one on the surface of the sperm and another in the tissue of the egg. Working with an international team, Pauli's lab used Google DeepMind's artificial intelligence tool AlphaFold to help them find and identify a new protein. The protein permits the first molecular connection between sperm and egg.

The developers of AlphaFold won a Nobel Prize earlier this month.

However, what the researchers did not know until now was how the proteins worked together as a team to get the sperm and egg to recognize each other, Pauli said.

Scientists still do not know how the sperm gets inside the egg after it attaches. They say they hope to explore that next.

Pauli said such research could help other scientists understand infertility better or develop new birth control methods, also called contraceptives.

The work provides targets for the development of male contraceptives said David Greenstein in an email to AP. Greenstein is a genetics and cell biology expert at the University of Minnesota and was not involved in the study. The latest study also highlights the importance of this year's Nobel Prize in chemistry, he said in the email.

I'm Anna Matteo.

Laura Ungar reported this story for the Associated Press. Anna Matteo adapted it for VOA Learning English.

_____________________________________________

Words in This Story

lock - n. a fastening (as for a door) in which a bolt is operated (as by a key)

key - n. a usually metal instrument that is used to open a lock or to start or access a mechanism

mechanism - n. a process, technique, or system for achieving a result

fundamental - adj. serving as a basis supporting existence or determining essential structure or function

evolution - n. the process by which new species or populations of living things develop from preexisting forms through successive generations


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0 sperm jFOzO     
n.精子,精液
参考例句:
  • Only one sperm fertilises an egg.只有一个精子使卵子受精。
  • In human reproduction,one female egg is usually fertilized by one sperm.在人体生殖过程中,一个精子使一个卵子受精。
0 together coQwY     
adv.一起,共同,相结合,同时地,协调地;adj.头脑清楚的,镇定的
参考例句:
  • Shall we go there together?我们一起去好吗?
  • They were driving to work together.他们一同开车去工作。
0 long M01xN     
adj.长的
参考例句:
  • Summer is the season of long days.夏天是日长的季节。
  • Winter is the season of long nights.冬季是夜长的季节。
0 interesting YquzGx     
adj.有趣的,有意思的
参考例句:
  • There are many interesting things there.那儿有许多有趣的东西。
  • I find the book interesting.我觉得这书有趣。
0 shows 5a3b59822122b957b4fe54e3f3c06bda     
v.给…看( show的第三人称单数 );表现出;显露出;上演
参考例句:
  • The research shows that computer games may cause aggression. 研究显示,电脑游戏可能引起好斗情绪。
  • She shows little appreciation of good music. 她感受不到美好音乐的妙处。
0 key V3ZxX     
n.答案;钥匙;关键;adj.基本的
参考例句:
  • I lost my key.我把钥匙丢了。
  • This will be key.这将是关键出路。
0 animals animals     
n.动物( animal的名词复数 );兽;兽性;粗野残暴的人
参考例句:
  • The time has come for action if these beautiful animals are to survive. 若要使这些美丽的动物能生存下去,现在就要行动起来。
  • All horses are animals, but not all animals are horses. 所有的马都是动物,但并不是所有的动物都是马。
0 people XMuxp     
n.人们,人;(the-)人民;一国人民,民族
参考例句:
  • Young people like popular music.年轻人喜欢流行音乐。
  • There are more than five billion people on earth.地球上有50多亿人口。
0 called 4f33252742282f871b0617168156fd55     
v.叫( call的过去式和过去分词 );通电话;认为;估计
参考例句:
  • She sensed something was amiss and called the police. 她觉得有点不对头,就叫了警察。
  • I called several times, but only got the answering machine. 我打了几次电话,但只有电话答录机答话。
0 really 9TqxT     
adv.真正地,实际上,实际上;很;实,其实
参考例句:
  • I really have to go.我确实得走了。
  • He's really a paper tiger.他实际上只是一个纸老虎。
0 team QqmwR     
n.队,组;v.协同工作
参考例句:
  • Mr.Smith trains the football team.史密斯先生训练这个足球队。
  • They were shouting for the home team.他们在为主队呐喊助威。
0 join WpNzwk     
v.参加,加入;联合,连接;和…在一起
参考例句:
  • He wished to join the army.他想要参军。
  • Come on and join us!快快来加入我们吧!
0 studies ahwzDQ     
n.研究;书房( study的名词复数 );研究论文v.学习,研究( study的第三人称单数 );想出;详细地检查;背诵(台词等)
参考例句:
  • a BTEC Higher National Diploma in Public Service Studies BTEC公共服务科高等国家证书
  • a degree in business studies 企业管理学位
0 show KyYwa     
v.出示;告知;n.展览(会);演出,节目
参考例句:
  • Please show me your card.请出示你的卡片。
  • Have you seen the show?你看演出了没?
0 years 75aeb98e5241592ad6a6c2c4c78a16ef     
n.年( year的名词复数 );年纪;一年的期间;某年级的学生
参考例句:
  • She is still very active, in spite of her advancing years. 她尽管年事渐高,仍然十分活跃。
  • Travelling in Europe was something of an anticlimax after the years he'd spent in Africa. 他在非洲生活了多年,到欧洲旅行真是有点太平淡了。
0 science 1Zkxe     
n.科学,学科,学问,自然科学;
参考例句:
  • Mathematics is the language of science.数学是科学的语言。
  • Is she your science teacher?她是你们的自然科学老师吗?
0 another JMzyp     
adj.另外的,再一,不同的;prep.另外一个,另一个人,同类的东西;pron.另一个,另外一个人,他人
参考例句:
  • We waited on for another hour,but still she didn't come.我们又等了一个小时,但她仍然没来。
  • Another snowstorm hit north America.又一场暴风雪袭击了北美。
0 working KeCzHO     
adj.(涉及)工作的;(人)有工作的;(时间)用于工作上的;(想法等)可作为基础的v.(使)工作( work的现在分词);(使)运作;运转;(使)产生效果n.工作;活动;制作;操纵
参考例句:
  • I had always been attracted by the idea of working abroad. 我总是向往去国外工作。
  • childcare facilities for working parents 为职业父母提供的照管儿童的设施
0 help 6dwxc     
v.帮助,帮忙
参考例句:
  • Maybe I can help you.也许我可以帮你。
  • Please help me with English.请帮我学英语。
0 first FjMxx     
adj.第一的;adv.首先
参考例句:
  • What should I do first?我该首先做什么?
  • That is the first question.这是第一个问题。
0 between qQUyN     
prep.在…之间,在(两者)之间;adv.在中间
参考例句:
  • God will judge between you and me.上帝会在你我之间作出裁决。
  • I will come between twelve and one o'clock.我会在12点至1点之间来。
0 earlier uuzzSC     
adj.早期的,初期的adv.早期(地),初期(地)
参考例句:
  • The basic design of the car is very similar to that of earlier models. 这种汽车的基本设计与早期的样式非常相似。
  • The earlier protests had just been dress rehearsals for full-scale revolution. 早期的抗议仅仅是大革命开始前的预演。
0 month vE1xE     
n.月,月份
参考例句:
  • He reached Beijing last month.他上个月到达北京。
  • February is the second month.二月是第二个月。
0 worked CegzHA     
adj.处理过的,作装饰用的v.(使)工作( work的过去式和过去分词 );(使)运作;运转;(使)产生效果
参考例句:
  • It worked contrariwise—first you dialled the number, then you put the money in. 这部电话的操作方式相反,即先拨通号码,然后投入钱币。
  • Initially, the system worked well. 开始时系统运转良好。
0 each yrNxG     
adj.每个,每,每一;adv.每个;int.每个,个人,个自
参考例句:
  • Each boy has a textbook.每个男孩都有课本。
  • Each child brought a little present to the mother.每个孩子给母亲带来一件小礼物。
0 still CuMwK     
adj.静止的,寂静的;adv.还,仍然;更;安静地
参考例句:
  • I'm still not interested.我还是不感兴趣。
  • I still remember his face.我仍然记得他的面容。
0 understand lkEwp     
vt.理解,闻知;vi.理解,相信,表示同情
参考例句:
  • I understand how you feel.我了解你的心情。
  • Do you understand this idea?你理解这种想法吗?
0 better yoLyT     
adj.更好的(good和well的比较级);更熟练的;好的;健康的; adv.更好地;更妥;更恰当
参考例句:
  • I know you better than him.我了解你胜过了解他。
  • She is better at singing.她更擅长于歌唱。
0 also 5LHyk     
adv.也,亦;并且;同样;而且,还
参考例句:
  • I also like chocolate ice cream.我也喜欢吃巧克力冰淇淋。
  • People also like to have a Christmas tree in the living-room.人们同样喜欢在起居室内摆一棵圣诞树。
0 work OoOyu     
n.工作,劳动
参考例句:
  • We all work hard.我们都努力工作。
  • Her work is to take care of the children.她的工作是照料好孩子。
0 study htIw1     
vt.学习;研究;细看;vi.读书;n.学习;研究
参考例句:
  • He helps me study English.他帮助我学习英语。
  • His wish to study music has come true.他学习音乐的愿望实现了。
0 words se0zHk     
n.字( word的名词复数 );(说的)话;诺言;口令
参考例句:
  • What were his actual words? 他的原话是什么?
  • Single words are the building blocks of language. 单词是语言结构的基本单位。
0 usually 9jXwX     
adv.通常,平常,一般
参考例句:
  • What do you usually eat?你平时都吃什么?
  • We usually go by train.我们通常坐火车去。
0 start 4u2wi     
v.开始;着手;出发
参考例句:
  • When do I start work?我什么时候开始工作?
  • Where do we start?我们从哪里开始?
0 mystery YwzyR     
n.神秘,奥秘,秘密,玄妙,不可思议的事
参考例句:
  • He often tells stories full of mystery.他常讲些充满神秘色彩的故事。
  • The mystery was never solved.这个奥秘始终未得到解释。
0 research SWuxr     
n.探索;调查;研究 vt./vi.调查;研究
参考例句:
  • Research has shown that women live longer than men.调查表明女性比男性寿命长。
  • The research group is ready to start its work.这个研究小组已准备好随时开始工作。
0 institute tRhzw     
n.学会,协会;讲习会,讲座;vt.建立,设立;开始
参考例句:
  • He thought of trying for a position in a research institute.他想方设法在一个研究机关找个工作。
  • He gave a talk to the Women's Institute on his travels in Asia.他就他的亚洲之旅为妇女协会做了非正式演讲。
0 proteins 8229a5e865a92a2fb7d089780e4e6904     
n.蛋白质( protein的名词复数 )
参考例句:
  • essential proteins and vitamins 必不可少的蛋白质和维生素
  • The plant requires nitrogen in order to make proteins. 植物需要氮以便制造蛋白质。 来自《现代汉英综合大词典》
0 sort qw7wK     
v.排序,挑选,分拣;n.种类,类别,性质,程度
参考例句:
  • She was a strange sort of person.她这个人有些古怪。
  • I don't much care for that sort of man.我不太喜欢那种人。
0 process mQZxL     
n.程序,进行,过程;vt.加工,处理,对…处置,对…起诉;adj.经加工的,三色版的
参考例句:
  • The bridge is in the process of being built.大桥正在建设中。
  • We will process your order at once.我们立刻处理您的订单。
0 surface QrFwj     
n.表面,平面;adj.表面的,肤浅的;v.使...成平面,被露出来,在表面工作
参考例句:
  • A gentle wind disturbed the surface of the water. 微风拂动水面。
  • The surface of the water is as smooth as a mirror.水平如镜。
0 used ajBwV     
adj.用旧了的,旧的;习惯于…;过去惯/经常
参考例句:
  • I used to work until nearly 6:00 o'clock each day.我过去常常工作到6:00左右。
  • He used to walk anywhere from two to five miles an hour.他过去经常一小时走二至五英里。
0 identify BbhxL     
vt.识别,认明,鉴定,使等同于;vi.一致,变成一致
参考例句:
  • Would you be able to identify the man who robbed you?你能够认出那个抢你东西的人吗?
  • We cannot identify happiness with wealth.我们不能把幸福与财富混为一谈。
0 protein GRuxE     
n.蛋白质;adj.蛋白质的
参考例句:
  • Soybeans are very rich in protein.大豆含有丰富的蛋白质。
  • Rice contains protein and fat.大米含蛋白质和脂肪。
0 connection SYryE     
n.联接,连结,联系;亲戚关系
参考例句:
  • How long will the connection of the telephone take?接通电话需要多长时间呢?
  • She is a connection of mine.她是我的一个亲戚。
0 recognize DS6zK     
vt.认出,认可,承认,公认,识别,赏识;vi.承认,具结
参考例句:
  • How will I recognize you?我怎样才能认出你?
  • I want to recognize Mr.Green.我想要认识格林先生。
0 explore vhsz9     
vt.勘探,探测;探究,探索
参考例句:
  • We've come to this country,let's explore!我们已经来到这个国家,让我们好好探访一番吧!
  • The began to explore the desert areas.他们开始探测沙漠地区。
0 methods a9ac5a6cc3cbe84f9c18323af2b9007f     
n.method的复数:方法;方法( method的名词复数 );方法论;教学法;分类法
参考例句:
  • Despite the crudity of their methods and equipment, the experiment was a considerable success. 尽管他们的方法和设备较为粗陋,那次实验却相当成功。
  • disapproval of his methods 不赞同他的方法
0 targets aa6f6d62574dedec24672f4ae1c9ca26     
n.(服务的)对象( target的名词复数 );(欲达到的)目[指]标;(射击的)靶子;[军事]军事攻击目标
参考例句:
  • business goals and targets 经营目的和指标
  • The radar beam can track a number of targets almost simultaneously. 雷达波几乎可以同时追着多个目标。 来自《简明英汉词典》
0 male TAHxR     
n.男人,雄性动物;adj.男性的,属于雄性的,有力的
参考例句:
  • This flower is a male.这朵花是雄性植物。
  • This is a male magazine.这是一本男性杂志。
0 email email     
n.电子邮件(Electronic mail),透过电脑网路传送邮件的方式
参考例句:
  • You can send me an email.你可以给我发一份电子邮件。
  • It's Interesting to read your email.读你的电子邮件很有趣。
0 expert TmNx1     
n.专家,能手;adj.熟练的,有经验的;专门的,内行的
参考例句:
  • She is an expert in training animals.她是驯兽专家。
  • What is a foreign expert card?什么是外国专家证?
0 involved Vq5zND     
a.复杂的,有密切关系的
参考例句:
  • a detailed assessment of the risks involved 对涉及风险的详细评估
  • students involved in all forms of college athletics 参加各种大学体育运动的学生
0 importance U9Xxy     
n.重要性,重大,价值
参考例句:
  • Never mind who told me,that's of no importance.不用管是谁告诉我的,这无关紧要。
  • Today more and more businessmen understand the importance of sports.今天越来越多的商人认识到运动的重要性。
0 adapted fcb84bd21a9a5f8a70e419f49bf22fb3     
adj.适合的v.(使)适应, (使)适合( adapt的过去式和过去分词 );改编,改写;改变…以适合(for);适应于,适应不同情况(或环境)(to)
参考例句:
  • Most of these tools have been specially adapted for use by disabled people. 这些工具多数已经过特别改装,供残疾人使用。
  • The engine is being specially adapted to increase its power. 正在对这台引擎进行改装以增加它的功率。
0 fastening qlHxR     
n.(门等)扣绊,拴扣物
参考例句:
  • The trousers have a fly fastening. 这条裤子是前开口。
  • Her father untied the string fastening the boots together. 她的父亲把两只靴子相连的皮条解开。
0 instrument Q6uxZ     
n.乐器,工具,仪器,器械
参考例句:
  • Can you play any instrument?你能演奏什么乐器吗?
  • Can she carry this instrument?她能搬走这仪器吗?
0 access OJmyz     
n.接近;达到;进入;入口,通路;微软(Microsoft)数据库处理软件
参考例句:
  • There is no access to the street through that door.那个门不通向大街。
  • The only access to the town is across the bridge.到镇上唯一的通路是经过一座桥。
0 technique tqjwW     
n.技术,技巧,方法,表演法,手法
参考例句:
  • His technique is almost perfect.他的技巧近乎完美。
  • It is said that it is hard to master technique.有人说技术难掌握。
0 basis gPgyX     
n.基础,主要成分
参考例句:
  • We can't accept that as a basis for a decision.我们不能同意以此为基础来做出决定。
  • What is the basis of your opinion?你这样看的根据是什么?
0 existence cz2yt     
n.存在,生存,生活,生活方式
参考例句:
  • He does not believe in the existence of ghosts.他不相信有鬼存在。
  • This house has been in existence for many years.这房子可有年头了。
0 determining d0e2d5a2b3b956071d96ff2e737f5070     
(使)下决心, (使)做出决定( determine的现在分词 ); 决定; 确定; 使决定
参考例句:
  • They are determining the serum-protein and cholesterol levels. 他们正在测定血清蛋白和胆固醇的浓度。
  • Carrie went out and there he sat, determining to do something. 嘉莉出去了,而他还坐在那里,下定决心要做些事情。 来自英汉文学 - 嘉莉妹妹
0 function xhzxa     
n.功能;作用
参考例句:
  • The function of the artist is to disturb the still.艺术家的作用是去打破平静。
  • The function of the heart is to send blood round the body.心脏的功能就是向全身输送血液。
0 scientists 0d40887127bee8f7731f5c4f95eb5331     
n.科学家( scientist的名词复数 )
参考例句:
  • Scientists have established a connection between cholesterol levels and heart disease. 科学家已证实胆固醇含量与心脏病之间有关联。
  • Scientists disagree about how the universe was created. 科学家对宇宙是怎样形成的有分歧。
0 provides 15512a989521ee93ea7ddfcfb4341132     
v.提供,供给,供应( provide的第三人称单数 );规定;提供[(+for)];装备
参考例句:
  • The report provides a framework for further research. 报告提供了进一步研究的原则。
  • The company provides more than 20 free-to-air channels. 本公司提供20多个免费收视频道。
0 lock 80JxE     
vi.锁,锁上,锁住,紧闭;vt.锁,锁上,拘禁;隐藏;使固定,卡住;n.锁,刹车;水闸;一缕头发
参考例句:
  • This box doesn't lock.这只箱子锁不上。
  • Will you lock up the house,please?请将房门锁起来,好吗?
0 such psww9     
adj.如此的,这样的;pron.这样的;adv.如此地
参考例句:
  • He is such a man.他是这样一个人。
  • He spent all his money,he is such a fool.他这样傻,花光了所有的钱。
0 discovered 538416cf3bc59332670af4cae9485ebe     
v.发现( discover的过去式和过去分词 );碰见;撞见;了解到
参考例句:
  • Marine life was discovered at depths previously thought to be azoic. 在先前被认为没有任何生命迹象的海洋深处发现了海洋生物。
  • They were discovered together in a compromising situation . 他们被人发现在一起,场面有伤风化。
0 across JJGy1     
adv.横过,使...被理解(或接受);prep.穿过,横过
参考例句:
  • He walked across the road carefully.他小心地过马路。
  • You can go across the bridge.你可以越过这座桥。
0 as pNiyL     
conj.按照;如同
参考例句:
  • He got work in a hotel as a waiter.他在一家旅馆找到了当服务生的工作。
  • In the hotel,the old men were drinking away as usual.在旅馆里,这些老人和往常一样喝个不停。
0 said IYtxh     
v.动词say的过去式、过去分词
参考例句:
  • He said to me that he could not come.他对我说他不能来。
  • He said to his mother that he would do it by himself.他对他的母亲说他将自己独立做那件事。
0 press M1zzE     
n.新闻界,压力;v.按,压
参考例句:
  • Press‘shift’ and type‘ C ’.按切换键然后打字母‘C’ 。
  • Let's press on with our work.咱们继续工作。
0 found 8i5xD     
v.建立,创立,创办;vbl.(find的过去分词)找到
参考例句:
  • I found him at home.我发现他在家。
  • The United Nations was found in 1945.联合国于1945年成立。
0 form dg5zW     
n.形式,形状,表格;v.形成,组成,建立
参考例句:
  • It is an art form.它是一种艺术形式。
  • My garden is in the form of a square.我的花园是方形的。
0 mice kDVxy     
n.(mouse的复数形式)老鼠
参考例句:
  • I like fish and mice.我喜欢鱼和老鼠。
  • Mice are small grey animals.老鼠是灰色的小动物。
0 human gcCxP     
n.人,人类;adj.人类的,人性的,有同情心的
参考例句:
  • Human beings can talk,but animals can't.人会说话,而动物却不会。
  • Kehr is a very human person.凯尔是一个极富人情味的人。
0 continued pvJznJ     
adj.继续的,延续的v.继续,连续( continue的过去式和过去分词 );持续;逗留;停留
参考例句:
  • She continued to assert that she was innocent. 她仍然坚称自己无辜。
  • Eyes downcast, she continued eating. 她低垂双眼,不停地吃。
0 millions dbe06ff4c910c39295673ca828a87fac     
n.数百万;百万( million的名词复数 )
参考例句:
  • a con man who bilked investors out of millions of dollars 诈取投资者几百万元的骗子
  • A small drop in the inflation rate was cold comfort for the millions without a job. 对数百万失业者来说,通货膨胀率的微降是不起作用的安慰。
0 appear fvnzw     
vi.出现,出场,出席,露面;似乎,好像,显得
参考例句:
  • The students appear very nervous.学生们看起来很紧张。
  • When night falls,stars appear.夜晚来到时星星出现。
0 magazine KAyx1     
n.期刊,杂志
参考例句:
  • How much is this magazine?这本杂志多少钱?
  • I read a magazine in bed.我躺在床上看杂志。
0 already wLByk     
adv.已经
参考例句:
  • We have eaten already.我们已经吃过了。
  • I've been there already,so I don't want to go again.我早已去过那里了,所以我不想再去了。
0 international y5zxL     
adj.国际的
参考例句:
  • International trade helps all nations.国际贸易有助于所有的国家。
  • March 8 is the International Woman's Day.三月八日是国际妇女节。
0 lab U2Yxf     
n.实验室
参考例句:
  • Who is in the lab this morning?今天早上谁在实验室?
  • We usually have Science in the science lab.我们通常在科学实验室里上科学课。
0 tool YJPzi     
n.工具,器具
参考例句:
  • You'll need a special tool to do that.干那个活儿要用专用工具。
  • A foreign language is a useful tool.外语是有用的工具。
0 won HfKwf     
vt.赢得(为win的过去式)
参考例句:
  • We won the game in the end.我们最终赢得了比赛。
  • We won the football game.我们赢得了足球赛的胜利。
0 prize cQgxE     
n.奖,奖品,战利品;v.珍视,捕获
参考例句:
  • He won a prize for good behaviour at school.他因在校的表现好而获奖。
  • He hopes from his very heart that he will win a prize.他满心希望获奖。
0 however 5c2xL     
adv.然而;conj.然而,可是,不过
参考例句:
  • It's raining hard.However,I still want to go there.虽然下着大雨,我还是想去那儿。
  • However, this does not always happen.然而,这种情况并不总是发生。
0 did SvwxP     
v.动词do的过去式
参考例句:
  • How many goals did you score in the last game?上一场比赛你们进了几个球?
  • Why did you choose basketball in the first place?你为何首先选择篮球呢?
0 until cjnw3     
prep.直到...为止;conj.直到...时才...
参考例句:
  • He arrived home until midnight.他直到半夜才到家。
  • She didn't sleep until midnight.她直到半夜才睡。
0 was bglwv     
v.(is,am的过去式)是,在
参考例句:
  • He said he was right.他说他是正确的。
  • He was cold and hungry.他又冷又饿。
0 inside MxDyi     
n.内部,内脏,内幕;adj.内部的,秘密的,户内的;prep.在...之内
参考例句:
  • Two minutes later we were inside the taxi.两分钟以后我们已经坐在出租车里面了。
  • He will be back inside two days.他将在两天内回来。
0 hope Kcwx9     
vt.希望,期望;vi.希望,期待;n.希望,期望
参考例句:
  • We hope you can come.我们希望你能来。
  • Hope you'll enjoy yourself there.愿您度过愉快的一天。
0 could lzvxe     
v.能,可能(can的过去式);aux.v.(can的过去式)能;可以
参考例句:
  • Could I open the window?我可以打开窗子吗?
  • I could wait ten minutes.我可以等十分钟。
0 develop 2vVx9     
v.发展;研制;开发
参考例句:
  • Plants develop from seeds.植物从种子长大。
  • We must develop the natural resources of our country.我们必须开发我们国家的天然资源。
0 birth SRyyr     
n.出身,血统,出生,诞生,出现,起源
参考例句:
  • She gave birth to a fine healthy baby.她生了一个健康可爱的婴儿。
  • She supports birth control.她赞成计划生育。
0 control sZYy2     
n.控制,管理,克制,控制器,调节装置;vt.控制,操纵,抑制
参考例句:
  • He lost control of his bicycle and fell down.他因控制不住他的自行车而跌倒了。
  • That child is impossible to control.那孩子很难管。
0 development 6v6x8     
n.发育,成长;发展,进展;发达;开发
参考例句:
  • We shall follow closely the development of the situation.我们将密切注意形势的发展。
  • This is the late development of science.这是科学的新发展。
0 biology yRkyu     
n.生物学
参考例句:
  • Biology is the study of living things.生物学是对生物的研究。
  • She has a degree in biology.她具有生物学的学位。
0 university TktwV     
n.大学
参考例句:
  • She teaches English at the University of Wales.她在威尔士大学教英语。
  • I'm going to enter a university.我要上大学。
0 latest kpJzAJ     
adj.最新的,最近的,最后的,最迟的
参考例句:
  • This is the latest hiar-style.这是最新的发型。
  • Have you read her latest work?你读过她最近的作品吗?
0 chemistry tU8yU     
n.化学,化学作用
参考例句:
  • He is reading a text in chemistry.他在看化学教科书。
  • Her major subject is chemistry.她的主修科是化学。
0 reported 2kLzWG     
adj.据报告的,据报导的,据传闻的
参考例句:
  • Ten new cases of bird flu were reported yesterday. 昨天新增十例禽流感病例报告。
  • Renewed fighting has been reported on the border. 据报道,在边境地区战火重燃。
0 operated 65ece8787e6d1fc09091b45fba314ffb     
adj.操作的,多操作者同时工作的v.运转( operate的过去式和过去分词 );操作;经营;管理
参考例句:
  • The secret service operated against the enemy during the war. 在战争期间对敌方展开地下工作。 来自《简明英汉词典》
  • This famous doctor has operated on many important people. 这位名医为许多重要人物做过手术。 来自《简明英汉词典》
0 metal aCwxO     
n.金属,质料;adj.金属制的;v.以金属覆盖
参考例句:
  • He hands a metal disk to me.他把一个金属圆盘给我。
  • Coins are made of metal.硬币是金属做的。
0 system 8qGwo     
n.系统,体系,制度,方式,秩序,分类原则
参考例句:
  • He is good at the subject of social system.他擅长于社会制度问题。
  • He created a new system of teaching foreign languages.他创造了一种新的外语教学体系。
0 achieving 7959b935afdef74b73fc9ce484019f03     
v.取得( achieve的现在分词 );获得;实现;成功
参考例句:
  • Your work seems to be leading nowhere, ie achieving nothing. 你的工作似乎不会有什麽结果。 来自辞典例句
  • She dreamt her life away, never really achieving anything. 她虚度一生,一事无成。 来自辞典例句
0 result fW9xA     
n.结果,成绩,答案;v.产生,起于,致使
参考例句:
  • As a result,he had to leave.结果他只得离开。
  • He was disappointed at the result.他对这样的结果感到失望。
0 serving 0ixznw     
n.服务;(食物或饮料的)一份;上菜adj.用于上菜的v.(为…)服务( serve的现在分词);任(职);提供;端上
参考例句:
  • The number of prisoners serving life sentences has fallen. 被判无期徒刑的囚犯数目下降了。
  • She can't come to the telephone; she's serving a client. 她不能来接电话,她正在接待一位顾客。 来自《简明英汉词典》
0 supporting sh6zUM     
adj.支持的,支撑的v.支持( support的现在分词 );帮助;支撑;维持
参考例句:
  • The movie featured Robert Lindsay in a supporting role . 罗伯特∙林赛在这部影片中担任配角。
  • He has peddled the myth that he is supporting the local population. 他散布说他支持当地群众。 来自《简明英汉词典》
0 Austria SyQzhP     
n.奥地利(欧洲国家)
参考例句:
  • Austria lies to the southeast of Germany.奥地利位于德国东南。
  • I always confuse Australia with Austria.我总是把澳大利亚同奥地利弄混。
0 associated CyJzoK     
adj.联合的
参考例句:
  • the risks associated with taking drugs 与吸毒有关的危险
  • I don't want to be associated with your scheme; I'm contracting out. 我不想参与你们的计划,我要退出。
0 permits c2f28daa81da003f46d3865ae0362d5c     
许可( permit的名词复数 ); 许可证; 执照
参考例句:
  • The building permits are granted by the City Building Department. 建筑许可证由城建局签发。
  • This task permits (of) no delay. 这项任务不允许有任何耽搁。
0 attach mv4zX     
v.附上,使依恋,爱慕
参考例句:
  • I do not attach much weight to the theory.我不十分重视这学说。
  • I advise you not to attach yourself to the party.我劝你不要参加这个党。
0 cells 5c203840dfcdf51dd7e33a72ea2f484f     
n.细胞( cell的名词复数 );小牢房;(修道士或修女住的)小房间;电池
参考例句:
  • Once in the bloodstream, the bacteria adhere to the surface of the red cells. 细菌一进入血液里,就附着在红细胞表面上。
  • an amorphous mass of cells with no identity at all 不知何物的杂乱一团的细胞
0 evolution ondxC     
n.进展,发展,演变,进化
参考例句:
  • A cultural and social evolution now becomes rapid.现在文化和社会发展很快。
  • It has passed through an interesting procedure of evolution.它经过了一个有趣的进化过程。
0 cell mUyyp     
n.区,细胞,血球;小室,牢房;电池,光电管;基层组织
参考例句:
  • Soap destroys the cell walls of bacteria.肥皂破坏细菌的细胞壁。
  • They have locked the prisoners up in their cell.他们已把犯人监禁在小牢房里。
0 intelligence IbtzQ     
n.智力,聪明,智能;情报
参考例句:
  • He was a man of intelligence and of firmness of will.他是个聪明而又意志坚定的人。
  • He equals me in strength but not in intelligence.他和我力气相等,但智力不同。
0 attaches 22337de9bb4e7cd4d845d35a2fd7fd26     
贴上,系,附上( attach的第三人称单数 ); (有时不受欢迎或未受邀请而)参加; 把…固定; 把…归因于
参考例句:
  • Mother attaches a great deal of value to good manners. 妈妈很重视礼貌。
  • No suspicion attaches to him. 他无可怀疑。
0 genetics Pgjxn     
n.遗传学
参考例句:
  • He gave me a piece of advice on how to learn genetics.他就如何学好遗传学给我提出了一条建议。
  • Population genetics owes its origin to Francis Galton.人体遗传学的创立应归功于弗朗西斯·高尔顿。
0 essential viGzb     
adj.必要的,必不可少的;本质的,基本的;n.要素,要点
参考例句:
  • The essential thing is that the two of you ought to agree.根本的问题是你们俩应意见一致。
  • It is essential for us to know all the facts.对我们来说,了解所有的事实是必要的。
0 structure PtNw5     
n.结构,构造,建筑物;v.构成;
参考例句:
  • Doctors study the structure of the human body.医生研究人体构造。
  • A flower has quite a complicated structure.一朵花的结构相当复杂。
0 insight D6fx4     
n.洞察力,洞悉,深刻的见解
参考例句:
  • Good teachers have insight into the problems of students.好的教师能洞察学生的问题。
  • The research will provide direct insight into molecular mechanisms.这项研究将使人能够直接地了解分子的机理。
0 unlocks 5ded395aeb61415fd2982a389803ae10     
v.开锁( unlock的第三人称单数 );开启;揭开;开着,解开
参考例句:
  • Appropriate and thoughtful self assertion unlocks talent, setting achievement in motion. 适当和周到的自我主张解锁人才,设置运动的成就。 来自互联网
  • Then, the specific IP address unlocks the services and temporarily grants access. 然后,特定的IP地址解锁服务,临时同意访问。 来自互联网
0 works ieuzIh     
n.作品,著作;工厂,活动部件,机件
参考例句:
  • We expect writers to produce more and better works.我们期望作家们写出更多更好的作品。
  • The novel is regarded as one of the classic works.这篇小说被公认为是最优秀的作品之一。
0 fundamental 3hzx8     
adj.基本的,主要的;基本原则,基本法则
参考例句:
  • The fundamental way out for agriculture lies in mechanization.农业的根本出路在于机械化。
  • Fresh air is fundamental to good health.新鲜空气对健康是不可缺少的。
0 findings 4tYzV9     
n.发现物( finding的名词复数 );调查(或研究)的结果;(陪审团的)裁决
参考例句:
  • It behoves us to study these findings carefully. 我们理应认真研究这些发现。
  • Their findings have been widely disseminated . 他们的研究成果已经广为传播。
0 tissue bJmzs     
n.组织;薄纱,薄纸,手巾纸
参考例句:
  • As we age we lose muscle tissue.肌肉组织会随着我们日趋衰老而萎缩。
  • Athletes have hardly any fatty tissue.运动员几乎没有什么脂肪组织。
0 artificial iNuz6     
adj.人工的,人造的,人为的;做作的,假装的
参考例句:
  • The new dam will form a large artificial lake behind it.新筑的水坝将会在后面形成一个人工湖。
  • We don't use any artificial flavourings in our products.我们的产品不使用任何人工调味剂。
0 highlights f19f9cf709c8385cd6c3595b87c892bd     
n.头发挑染部分;全球知名儿童刊物及相关产品的发行和销售商的名称、商号及商标
参考例句:
  • The report highlights the major problems facing society today. 报告特别强调了当今社会所面临的主要问题。
  • The report highlights a number of instances of injustice. 这篇报道重点列举了一些不公正的实例。
0 learning wpSzFe     
n.学问,学识,学习;动词learn的现在分词
参考例句:
  • When you are learning to ride a bicycle,you often fall off.初学骑自行车时,常会从车上掉下来。
  • Learning languages isn't just a matter of remembering words.学习语言不仅仅是记些单词的事。
0 bolt FdCyL     
n.螺栓;插销;vt.闩,栓住;vi.冲出去,逃跑
参考例句:
  • It is a bad habit to bolt your food.狼吞虎咽地吃东西是个不良习惯。
  • That door refuses to bolt.那扇门关不牢。
0 backbone ty0z9B     
n.脊骨,脊柱,骨干;刚毅,骨气
参考例句:
  • The Chinese people have backbone.中国人民有骨气。
  • The backbone is an articulate structure.脊椎骨是一种关节相连的结构。
0 molecular mE9xh     
adj.分子的;克分子的
参考例句:
  • The research will provide direct insight into molecular mechanisms.这项研究将使人能够直接地了解分子的机理。
  • For the pressure to become zero, molecular bombardment must cease.当压强趋近于零时,分子的碰撞就停止了。
0 infertility 37ExE     
n.不肥沃,不毛;不育
参考例句:
  • It is the Geneva, Switzerland-based Biotech Company's second recombinant infertility drug. 它是瑞士生物技术公司在日内瓦的公司生产的第二种重组治疗不孕症的药。 来自英汉非文学 - 生命科学 - 生物技术制药疫苗
  • Endometritis is a cause of infertility. 子宫内膜炎是不育的原子。 来自辞典例句
0 mechanism zCWxr     
n.机械装置;机构,结构
参考例句:
  • The bones and muscles are parts of the mechanism of the body.骨骼和肌肉是人体的组成部件。
  • The mechanism of the machine is very complicated.这台机器的结构是非常复杂的。
0 spoke XryyC     
n.(车轮的)辐条;轮辐;破坏某人的计划;阻挠某人的行动 v.讲,谈(speak的过去式);说;演说;从某种观点来说
参考例句:
  • They sourced the spoke nuts from our company.他们的轮辐螺帽是从我们公司获得的。
  • The spokes of a wheel are the bars that connect the outer ring to the centre.辐条是轮子上连接外圈与中心的条棒。

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