文章列表

• 1.【英语时差8,16】孕妇不宜穿高跟鞋（下）
• When youre pregnant, the extra weight and girth shifts your center of gravity forward, which makes it harder to maintain balance even in sensible, fla...
• 2.【英语时差8,16】科学物理测验（上）
• You have a long metal tube that is curved. You also have a miniature golf ball that you are knocking into one end and out the other. How does the ball...
• 3.【英语时差8,16】天空变成绿色时
• It sounds like something from a fairy tale. If you look at the horizon at sunsetexactly as the last sliver of sun disappearsyou might see a flash of b...
• 4.【英语时差8,16】对火焰的分析
• Fire is a chemical reaction between oxygen molecules and some kind of fuel. This reaction releases the heat and light that we call fire. You might won...
• 5.【英语时差8,16】孕妇不宜穿高跟鞋（上）
• Say youre five or six months pregnant and youre invited to a wedding. Its a formal affair, and although your belly isnt as flat as it used to be, you ...
• 6.【英语时差8,16】海洋杀手
• Don: Time now for another episode of A Moment of Science's Did You Know... So,Ya?l, did you know that there have been about twenty-three mass extincti...
• 7.【英语时差8,16】“少夫老妻”式婚姻，女性折寿
• According to a study by German researchers, the same does not hold true. In fact, they found that women who pair up with men several years their junio...
• 8.【英语时差8,16】父亲也会得产后忧郁症？
• I know that new mo the rs sometimes experience postpartum depression. But can new dads get depressed after having a baby,too? Intetesting question.And...
• 9.【英语时差8,16】冰川渐渐融化
• Ya?l: Hey Don, whatch'a doing? Don: Booking a trip to Glacier National Park. I want to go there before the glaciers disappear. Y: What do you mean? D:...
• 10.【英语时差8,16】飞机如何平稳飞行？（下）
• Turbulence is characterized by winds moving at different speeds. If the airborne particles are moving in wildly different directions in one region, bu...