You must know that pools are expensive to build, and they usually take several years to complete.

你必须知道建造游泳池是很昂贵的，而且通常需要几年的时间来完成。

youdao

You must know that, in the storm which swamped my boat, a large ship also suffered the same fate.

你一定知道，在这场淹没了我的小船的风暴中，一艘大船也遭受了同样的命运。

youdao

You must know that we have parents.

你们应当知道，我们是有双亲的人。

youdao

We know we must work with you to do that.

VOA: standard.2009.03.31

Well, I think you must know now how to formulate that question.

我想你们都知道怎么列方程

耶鲁公开课 - 基础物理课程节选

Every child, every one of you, every one of us was brought up to know that one must never do wrong, even if good consequences are seen to follow.

每一个小孩，在座的各位，我们每一个人都从小被教育,不要做坏事，就算结果是善也不行。

耶鲁公开课 - 政治哲学导论课程节选

So today, you must know that help is arriving -- much, much more help is on the way.

WHITEHOUSE: Haiti Earthquake Relief Update

You surely must know that there have been censures in our American history.

CNN: Transcript: House debates articles of impeachment

Michael, You must know by now that research can be slanted any way to make a point. the only point is that marriage and careers take dedication and hard work.

FORBES: Readers Say