I don't know where any one of them is, but I can tell you on average where any one of them is likely to be.

我不知道它们中单独的个体在哪，但我可以大体告诉你,它们其中一个将是会怎样。

麻省理工公开课 - 固态化学导论课程节选

I don't know what it is, but you look gorgeous tonight.

我不知道为什么，但你今晚真是美若天仙。

You look 实战 - SpeakingMax英语口语达人

But what I'm trying to get at is do you consider that you are under no obligation, since you haven't actually entered into any act of consent, but for prudential reasons, you do what you're supposed to do according to the law?

但我想知道的是，你认为自己,不负有任何义务，因为你并未真正作出任何形式的同意，只是出于谨慎考虑，你还是会依法缴税，是吗？

耶鲁公开课 - 公正课程节选