我当你不知道。

I thought you didn't know.

《新英汉大辞典》

当你读到这里的时候，也许不会同意我所说的每一件事，所以他们告诉我我做错什么了或者我自己也不知道我在说什么。

People reading this may not agree with everything I say, so they tell me I’m doing something wrong or that I don’t know what I’m talking about.

youdao

我不知道自己为何有这般反应，也许是过于紧张，或者是当你如此靠近另一个人，你很难不对他微笑。

I don't know why I did that. Perhaps it was nervousness, perhaps it was because, when you get very close, one to another, it is very hard not to smile.

youdao

So, for those of you who have never heard French before, when you hear somebody say, "Je ne sais pas" you could say, "Remarkable!

因此,对于那些从未听过法语的人来说,当你听到有人说,"我不知道",你可能会说,"太神奇了

耶鲁公开课 - 心理学导论课程节选

PROFESSOR: Great question. So the question is, how do you choose an algorithm, why would I choose to use a pseudo-polynomial algorithm when I don't know how big the solution is likely to be, I think that's one way to think about it.

教授：问得好，所以问题是，你怎样选择算法，为什么当我,不知道解决方案会有多大的时候,我要选伪多项式算法呢，我想这是一种思考问题的方式。

麻省理工公开课 - 计算机科学及编程导论课程节选