pipe away

1. 用管道输出

They were piping the water away.

他们正用管道把水引走。

2. 不断地吹奏木管乐器

She had piped away for a whole hour.

她已吹奏了整整一小时。

pipe down

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。

pipe in

1. 用管道输入

They had managed to pipe the water in from the river nearby.

他们已经设法用管道把附近的河水引进来。

2. 用电讯设备传送

We're going to pipe electricity in from a hydropower plant.

我们将从水电厂输电出来。

pipe up

1. 尖声地说

I had to pipe up when they were pushing that crazy idea.

当他们在鼓吹那疯狂的想法时, 我不得不大发议论。

"I don't agree! " someone piped up.

"我不同意! "有人高声说道。

Put that in your pipe and smoke it.

1. 你自己好好考虑吧。