搜索关注在线英语听力室公众号:tingroom,领取免费英语资料大礼包。
(单词翻译)
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute.
As long as there have been mice, people have sought a better mousetrap. And since we figured out that bacteria can make us sick, we’ve searched for better antibiotics2. Now scientists in Canada and Japan have come up with a new way to disarm3 the bugs4 that cause food poisoning.
Most antibiotics directly attack the microbes that make us ill. Penicillin5, for example, weakens bugs’ tough outer wall to the point that many of them simply explode. While such treatment kills the bacteria, it doesn’t necessarily eliminate the threat. Because a lot of bugs produce toxins7, and it’s the toxins that knock us for a loop. Blowing up the bugs can just make things worse.
What these researchers have designed is a drug that helps the body mop up bacterial8 toxins. In their study, a single injection of the drug protected mice from the potentially lethal9 effects of shiga toxin6, the sick-making molecule10 produced by the kinds of E. coli that cause food poisoning. Their results appear in the October 28th issue of the Proceedings11 of the National Academy of Sciences. With antibiotic1 resistance on the rise, having more weapons in our antibacterial arsenal12 is not a bad idea. Because anyone who’s eaten the sun-baked potato salad can tell you food poisoning is no picnic.
Thanks for the minute for Scientific American's 60-Second Science. I'm Karen Hopkin.
1 antibiotic | |
adj.抗菌的;n.抗生素 | |
参考例句: |
|
|
2 antibiotics | |
n.(用作复数)抗生素;(用作单数)抗生物质的研究;抗生素,抗菌素( antibiotic的名词复数 ) | |
参考例句: |
|
|
3 disarm | |
v.解除武装,回复平常的编制,缓和 | |
参考例句: |
|
|
4 bugs | |
adj.疯狂的,发疯的n.窃听器( bug的名词复数 );病菌;虫子;[计算机](制作软件程序所产生的意料不到的)错误 | |
参考例句: |
|
|
5 penicillin | |
n.青霉素,盘尼西林 | |
参考例句: |
|
|
6 toxin | |
n.毒素,毒质 | |
参考例句: |
|
|
7 toxins | |
n.毒素( toxin的名词复数 ) | |
参考例句: |
|
|
8 bacterial | |
a.细菌的 | |
参考例句: |
|
|
9 lethal | |
adj.致死的;毁灭性的 | |
参考例句: |
|
|
10 molecule | |
n.分子,克分子 | |
参考例句: |
|
|
11 proceedings | |
n.进程,过程,议程;诉讼(程序);公报 | |
参考例句: |
|
|
12 arsenal | |
n.兵工厂,军械库 | |
参考例句: |
|
|
本文本内容来源于互联网抓取和网友提交,仅供参考,部分栏目没有内容,如果您有更合适的内容,欢迎 点击提交 分享给大家。