他可能不知道这是什么东西，但他知道这能让我开心。

He probably didn't know what it was, but he knew that it made me happy.

youdao

他可能不知道。让我们问一下那位警察。

He may not know. Let's ask the policeman.

youdao

他可能不知道答案。

He may not know the answer.

youdao

And even though he could figure out that this wasn't possible, he still used this as a starting point, and what he did know was that these energy levels that were within hydrogen atom were quantized.

这是不可能的了,但他还是以此为出发点，他知道，氢原子的这些能级,是量子化的,而且他也知道，我们上节课所看到现象。

麻省理工公开课 - 化学原理课程节选

Right? But he says, "You know what? That is well nigh impossible.

对吗？，但他说，你知道吗，这近乎不可能。

耶鲁公开课 - 文学理论导论课程节选

It's possible that he genuinely didn't know what to do, that he wasn't smart enough to understand that he needed to point to the other one.

有可能他是真的不知道该做些什么,他还不够聪明,无法理解他需要指向另一个物体

耶鲁公开课 - 心理学导论课程节选