This is on purpose, because one of the things I hope you have learned to do this semester, is look up things you don't know, and figure out what they do. What they mean.

我举这个程序是有目的的，因为我希望你们这续期能学到,如何去查找你不知道的东西并，且弄懂它,们是干什么的，是什么意思。

麻省理工公开课 - 计算机科学及编程导论课程节选

Because if you did what I suggested with the list, the time to look up the key would be linear in the length of the list. You'd have to look at each element until you found the key.

字典是用一种很神奇的，叫做散列法的算法,来实现的，后面我们将,会学到一点关于。

麻省理工公开课 - 计算机科学及编程导论课程节选

So, I went to go look up the authoritative source on this, and so I looked this up, and I want to give you a sense of what the truth is.

这样，我查阅了与此相关的权威资料，查到了这些，我想给你们一种对于事实真相的认知感。

麻省理工公开课 - 固态化学导论课程节选

And I put a periodic table up there, just the part you might need to look at.

我在上面放了一张周期表，只放了可能要用到的一部分。

麻省理工公开课 - 化学原理课程节选

On the other hand, if you haven't been keeping up, I hope that you won't pass so I can tell you, look, you have to do things differently.

另一方面，如果你没有继续进行，我希望你不能够过，因此我要告诉你的是，看，你做的事分别很大。

麻省理工公开课 - 固态化学导论课程节选