pipe down
US /paɪp daʊn/
UK /paɪp daʊn/
1.
安静, 住嘴
used to tell someone to stop talking or to be quiet
:
•
Will you two just pipe down? I'm trying to concentrate.
你们两个能安静点吗？我正在努力集中注意力。
•
The teacher told the noisy students to pipe down.
老师让吵闹的学生们安静下来。