I think you should take the lab sometime, but I don't know how many semesters that you have to take.

我觉得你们应该是不是地去做几次实验,我不太清楚你们要上多少个学期的课

耶鲁公开课 - 基础物理课程节选

Now many of you may have heard, many of you may know, and if you don't already know this, I should warn you, that I have a reputation around Yale as being a harsh grader.

你们中的大多数可能听说过，你们中的一部分可能知道，如果你真的不知道，那么我要警告你，我在耶鲁,是出了名的严厉。

耶鲁公开课 - 死亡课程节选

I know you couldn't do the details, but you should at least know that it's i prime and j prime that have been replaced by i and j.

我知道你们不太注意细节,但你们至少应该知道 i' 和 j',已经被 i 和 j 取代了

耶鲁公开课 - 基础物理课程节选