No matter what we do, we must carry out our duties.

无论做什么工作，我们都应履行自己的职责。

youdao

It is very important that we must be honest about what we do not know.

最重要的是，对于我们不了解的事情我们必须坦诚交待。

youdao

As far as quality is concerned, we must not make do with what we have, but must constantly strive for excellence.

在质量[品质]方面，不能将就，要精益求精。

《新英汉大辞典》

"What we do here must be relevant to their lives.

VOA: special.2010.02.27

Nobody says that.What they say is, "Oh please, we need you Achilles,you must not do this."

没人这么说,他们说的是,"噢,求求你,我们需要你,阿喀琉斯,你可一定得去参战啊"

耶鲁公开课 - 古希腊历史简介课程节选

That is what we must do today and what we must do on the question of the debt limit.

CNN: 'The era of big government is over'

When a fellow American is in this kind of trouble, we set aside our allegedly deeply held political beliefs and we do what we must to help people in such deep distress.

FORBES: Deadly Tornados Reveal The Failure Of Today's Perverse GOP Ideology

During the five-hour hearing, Sen Kerry also said "we will do what we must to prevent Iran from obtaining a nuclear weapon".

BBC: John Kerry eyes revival of Middle East peace talks