button your lip

US /ˈbʌt.ən jʊər lɪp/

UK /ˈbʌt.ən jʊər lɪp/

闭嘴, 保持安静

to stop talking or to keep quiet

•

The teacher told the noisy students to button their lip.

老师让吵闹的学生闭嘴。

•

I had to button my lip to avoid arguing with him.

我不得不闭嘴，以避免和他争吵。