pipe down
安靜下來,停止嘈雜或說話聲音
口語·要求安靜
英文釋義
to become quiet or stop talking
例句
Hey, pipe down in there! I'm trying to study.
典故來源
源自航海術語,船長吹哨(pipe)讓水手安靜或收工,后引申為安靜。