So it doesn't matter how big the dictionary is, you can instantaneously retrieve the value associated with the key. Extremely powerful.

因为你可以在线性时间，内得到想要的键对应的值,这太强大了。

麻省理工公开课 - 计算机科学及编程导论课程节选

You spend time looking for the article and when you find it, there are two different colors.

你花时间找你想要的东西，而当你找到了，有两种不同的颜色。

What do you 课堂 - SpeakingMax英语口语达人

If you wish to change sections, you may do so only with permission of the subject administrators because it's very important that those sections be kept at a small population.

如果你们想要改时间，你只能在课程管理主任允许,的情况下这样做,因为让课程的人数保持在比较少的水平,是很重要的。

麻省理工公开课 - 固态化学导论课程节选

You're wasting your time asking somebody like me.

你要想问我那些,就是在浪费时间

耶鲁公开课 - 死亡课程节选

and you would like to spend more time with that person

你很想要跟这个人多一些相处时间。

Do you mind 课堂 - SpeakingMax英语口语达人

Again, I'm not going to spend much time on this, of the ith asset is the regression coefficient when you regress the return on the ith asset on the return of the market portfolio.

再强调一次，我不打算花太多时间在这个等式上面，但要注意的是当你想将市场组合收益，but，the，β,回归到第i资产收益中去,第i资产β系数是线性回归方程的,回归系数。

耶鲁公开课 - 金融市场课程节选

Use "When" whenever you want to ask about the timing of a certain event or series of events.

当你想要询问一个或一系列事件的具体时间时，你可以用“When”句型。

When 课堂 - SpeakingMax英语口语达人