What troubled the teacher was that no one present made an answer when asked who had broken the window, so he didn't know who was to blame.

令老师烦恼的是，问起谁打破了窗户时，在场的人没有一个回答，所以他不知道该责怪谁。

youdao

He couldn't read, so he didn't know about the new law.

他不识字，所以他不知道这个新法令。

youdao

We didn't tell him he probably would never make the team, so he didn't know.

我们没有告诉他，他可能永远也不能成功加入这支队伍，所以他不知道。

youdao

It was invented by a mathematician called Bellman. And he was at the time being paid by the Defense Department to work on something else. And he didn't want them to know what he was doing. So he made up a name that he was sure they would have no clue what it meant.

一点儿道理也没有,它是一个叫Bellman的数学家发明的,那时受聘于国防部研究一些其它东西,它不想让它们知道她在研究什么,所以它编造了一个,它们不会知道意义的词语。

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He told Andy on camera that he didn't have a father growing up so he didn't know how to be a father at times.

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"You didn't know he was out because, to a large extent, you voluntarily got yourself so drunk that you didn't know where he was, " the judge told her.

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Wiederhorn points out that his past malfeasances are spelled out in the franchise agreement so no one can say he didn't know what he was getting into.

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