pipe down
vi. 吹哨让(水手)下班
停止讲话, 安静下来
例句与用法：
Pipe down, children. I'm trying to listen to the news on the radio.
静一静，孩子们，我想听无线电里播送的新闻。
I told her to pipe down but she still babbled on.
我叫她闭嘴，可她还是唠叨个没完。
She told the children to pipe down while she was talking on the telephone.
她告诉孩子别吵了，她正在打电话。
1. 用管道往下输送
They had piped the water down.
他们已用管道把水引到下面。
2. 吹哨让(水手)下班
It's time to pipe the sailors down.
该吹哨通知水手们下班了。
3. 【口】安静! 闭嘴!
Will you children pipe down and go to sleep?
孩子们, 可不可以静一静, 睡觉去?
Pipe down! I'm listening to the church bell.
安静! 我在听教堂的钟声。