Put your hand up if you know the answer.

知道答案就举手。

《牛津词典》

She of all people should know the answer to that.

在所有的人中，唯有她最应知道那个问题的答案。

《牛津词典》

'I know the answer,' piped up a voice at the back of the room.

“我知道答案。”房间后边有个声音叫起来。

《牛津词典》

"I happen not to know the answer." Some analysts think Amiri's return could mean an exchange for Americans held in Iran.

VOA: standard.2010.07.13

And you know the answer is yes because I wouldn't set myself up for failure like this, would I?

你知道答案是，是,因为我不会为了这个而承担失败的风险，为什么我不会呢？

麻省理工公开课 - 固态化学导论课程节选

But if you want to know the answer, and I knew it, but I forget what it is-- it doesn't matter.

如果你想知道答案,我曾经是知道答案的,不过我忘掉了,这不重要

耶鲁公开课 - 心理学导论课程节选

And when I look out at all of you, I know the answer to that.

WHITEHOUSE: President Obama Speaks to Troops in Afghanistan

Well i know the answer to that question and i suspect you do too.

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We all want to know the answer to that question in our lives, too.

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