He built a raft to take him across even though it took him an extra day.

VOA: special.2010.06.26

If you took a 15 inch artillery shell moving at the velocity it typically goes at, and take that amount of kinetic energy versus the resistive capacity of a sheet of tissue paper, that's the scale that we're looking at here.

如果你有1个15英寸的炮弹,按照经典的速度移动，会消耗大量的动能,抵抗来自于一张薄纸的阻力，这就是我们在这儿看到的尺度。

麻省理工公开课 - 固态化学导论课程节选

It took me seven comparisons, because I can take advantage of the fact I know I only ever have to look at the first element of each sub-list. Those are the only things I need to compare, and when I run out of one list, I just add the rest of the list in.

进行了7次对比，因为我可以利用我知道的优势：,每次只需要比较每个子列表的第一个元素,那才是我需要进行对比的内容,当一个列表的元素处理完了,只需要将另一个列表剩下的元素直接添加进去。

麻省理工公开课 - 计算机科学及编程导论课程节选

"It took us a long time to get here. It is going to take some time for us to work through this.

VOA: standard.2009.04.05

I computed the returns on the stocks, bonds, and oil for every year from 1983 and I computed the average returns, which I take as the expected returns, I took the standard deviations, and I took the covariance.

我计算了从1983年以来每年的股票,债券和石油的收益，从而得出平均收益率，这些平均收益率作为预期收益率，然后算得标准差及协方差。

耶鲁公开课 - 金融市场课程节选

The president's top political aide says President Obama has had to take unpopular action to deal with an economic crisis far worse than anyone expected when he took office.

VOA: standard.2010.01.24

Well,I suppose it doesn't strike me as an implausible thing to say that if everybody in the troop got killed and you would have gotten killed had you been there, but instead,the person you hired to take your place gets killed, then he took your place.

我想可以这么说,如果大家都被杀死，而你若是在战场上也被杀了，但被杀的却是你花钱雇来的人，他就代替了你。

耶鲁公开课 - 死亡课程节选

"As I've said from the day I took office, it's going to take months, even years, to dig our way out - and it's going to require an all-hands-on-deck effort."

VOA: standard.2010.07.03

But the point is Reagan supported that effort and that made all the difference, and it took a lot of courage Reagan was going to take the recession in 1982 He was willing to support Volker no matter what to get the inflation down ... Alright, so... Interest rates in the summer of 1980 were quite high Yes, they were.

但是，里根力挺了这次货币改革,这才是重点，下这样的决心不容易,里根本打算在1982年来狠抓经济衰退2,他很信任沃尔克,为了降低通胀率，可以不惜一切代价,好吧，那么。,1980年夏天，银行利率已经相当高了,没错，确实如此。

斯坦福公开课 - 经济学课程节选