So each of these cups again have different weights if I want to find the lightest of them I might start not knowing which is which.

它们的重量互不相同，如果我要,找出最轻的一个，而我根本不知道会是,哪一个。

哈佛公开课 - 计算机科学课程节选

What I'm inviting you to think about is which one, if you had to choose between these two gruesome scenarios, which one would you rather save?

这里我要请大家思考的是，哪一个，如果你必须在这两个残忍情境中作出抉择，你会救哪一个？

耶鲁公开课 - 死亡课程节选

I just don't know which it is, right?

我不知道哪一个是对的

耶鲁公开课 - 博弈论课程节选