You must keep silent during the exam.

考试时你必须保持沉默。

youdao

Would you please keep silent? The weather report is being broadcast and I want to listen.

你可以保持安静吗？正在播天气预报，我想听一下。

youdao

Yes, I just wanted to keep silent.

是的，我要保持沉默。

youdao

I will keep silent because talking or repeating myself will not do any good.

VOA: special.2010.01.24

There is a line of misconduct beyond which they will not keep silent.

FORBES: Do Law Enforcement Officers Have "A Code" Or A Culture Where They Overlook The Transgressions Of Other Cops Or Retired Cops?

In fact, the only choice left was to keep silent or to debate nuclear safety issues in a law court.

BBC: Can nuclear power ever be safe?

Soon after, however, he quieted, and one university employee told me that all others were instructed to keep silent as well.

FORBES: 'Domestic Violence Could Happen To You': A Writer's View -- Part II