Our cars pump out thousands of tonnes of poisonous fumes every year.

我们的汽车每年排放出成千上万吨的有毒尾气。

Some plants pump out smelly chemicals to keep insects away.

有些植物释放出有臭味的化学物质来赶走昆虫。

Pump out the bilge water, please.

请把污水泵出去。

Let's pump out the well.

让我们把井里的水抽干。

Pump out ballast water.

排出压载水。