We had teachers who were teaching in completely Chinese schools and they did not know how to use any English to teach English-speaking children Chinese.

我们有很多老师在中文学校教书，但是他们不知道如何用英语来教母语是英语的孩子说中文。

youdao

Where people did not know how to seek the relation of cause and effect, they looked for a teleological interpretation.

在人们无法找出原因和结果的关系的时候，他们便会寻求目的论的解释。

youdao

They soon came to a small brook, and because there was neither a bridge nor a walkway there, they did not know how they would get across it.

没过多久，它们来到了一条小溪边，小溪上既没有桥，也没有跳磴，它们不知道该怎么过去。

youdao

And they let others know it. They sometimes made statements about how they did not have to obey the law.

VOA: special.2010.02.25

So, apparently, did the Nethers, who planned to use her to repopulate their depleted numbers and bake various things they did not know how to bake.

NEWYORKER: Tenth of December

Consumers did not know how much they would use data and value it.

FORBES: Verizon Makes Wireless Pricing Rational

Because as visionary as our founders were, they did not presume to know exactly how the times would change and what new questions fate and history would set before us.

WHITEHOUSE: A White House Reception for Justice Kagan