老师使这吵闹的班级安静了下来。

The teacher made the rowdy class quiet down .

youdao

阅读是一种很安静的活动，特别是在阅读工作文件或者阅读的内容很枯燥时，仰卧的姿势容易使人入睡。

Reading is a quiet activity and it will often induce sleep in the supine position. Especially if it's a dreary textbook or work paper.

youdao

使房间保持较暗的光线和安静，不要在床上工作，让可能造成分心的事情都离开这里。

Keep your room dark and quiet, and remove distractions (no working in bed).

youdao