They had a happy life, but they did not know how happy till the pretty life in the large house was over.

他们过着幸福的生活，但直到大房子里的美好生活结束了，他们才意识到之前有多幸福。

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They did not know how to spend their time.

他们不知道，怎样来打发时间。

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And they would not listen, they did not know how.

他们不会听，他们也不会懂。

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It was a place where people owned things that they did not know how to use.

VOA: special.2010.01.03

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

When people began sailing out of sight of land, sailors did not know how to tell where they were on the open sea.

VOA: special.2010.07.14

Most people said they did not know how they would vote, or declined to share the information.

ECONOMIST: The defence vote in Portsmouth: England expects | The

She added they did not know how long that would be but were relieved the auditorium had not been damaged.

BBC: York businesses count cost of flooding

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