Her grief was still raw and he did not know how to help her.

她的悲伤仍然强烈直露，他不知道如何帮助她好。

《柯林斯英汉双解大词典》

The question caught her completely off-guard and she did not know how to reply.

这个问题令她猝不及防，不知道怎么回答。

《柯林斯英汉双解大词典》

She does not know how to get to the next block.

她不清楚怎么去下一个街区。

youdao

The jester said, "If these wise men do not know how to hide the moon, then the moon cannot be hidden."

VOA: special.2009.03.28

and they do not know how to fix the tire.

而车上的人对此束手无策。

I can 课堂 - SpeakingMax英语口语达人

We need to know not only what are the primitives, but how do we make things meaningful in that language.

我们不仅需要知道什么是基本类型，还要知道我们在那种语言中,怎样使其变得有意义。

麻省理工公开课 - 计算机科学及编程导论课程节选

It was as if the animals did not know how to cope with their new found freedom.

BBC: Lab chimps successfully treated with anti-depressants

They may not know how to price others in the pipeline either, like Facebook.

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Or she does not know how to choose flattering clothes that deemphasize her bust.

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