"她说，"现在我知道是为什么了。"

"I always got a kick out of counting money, " she said. "Now I know why."

youdao

她们轻蔑地看着我，我知道是为什么。

They looked at me contemptuously and I can see why.

youdao

所以如果我知道是为什么，可能就不这么害怕了。

So maybe if I knew why, I'd stop being so scared of hearing them.

youdao

And I don't know why, but since time immemorial that is the way computer scientists have drawn trees.

叶子是在最下面的，我不知道为什么,但从记事以来他们就是这么画树的,这也许就是为什么我们。

麻省理工公开课 - 计算机科学及编程导论课程节选

Now why--and here is the question why do we get this nervousness about the relationship between what I know and how I know it arising at this moment?

问题是,为什么那时候我们对,我知道什么和我如何知道的关系如此神经紧张？

耶鲁公开课 - 文学理论导论课程节选

But I was convinced I'd hear the click-click-click-click-click which is what tells you you're in trouble.

我总会觉得很紧张，我不知道这是为什么,虽然我从来没有接触过放射元素。

麻省理工公开课 - 化学原理课程节选