Do you know where I can reach him?

你知道我在哪儿能跟他联系上吗？

《牛津词典》

Do you know anywhere I can buy a second-hand computer?

你知道我在哪儿可以买到二手计算机吗？

《牛津词典》

Do what you know you can do well and don't overstretch yourself.

做你自己能做好的事情，不要超出自己的能力。

《柯林斯英汉双解大词典》

Amanda says she does not want children to ever give up because they do not know what they can do until they try.

VOA: special.2009.07.31

OK, so do we know anything so far that we can point to that would give us a departure?

好，到目前为止我们能在我们了解到的,东西中找出一些违背这些规律的例子吗？

麻省理工公开课 - 固态化学导论课程节选

You are doing a great work. Keep up the good job because I know you can do it.

你做得真棒！再接再厉哦，相信你能行的！

How long课堂 - SpeakingMax英语口语达人

You go in there and you know you can do it because you know he's behind you.

CNN: Charlotte Dujardin: 'The girl with the dancing horse'

"You stay ready and do what you know you can do, " he said.

WSJ: Smith lifts short-handed Knicks past Jazz, 90-83

So, do more of what you know you can do.

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