We must beware of swimming in a swift current.

我们在急流中游泳一定要当心。

youdao

It is dangerous for him to swim in such a swift current.

他在这样的急流中游泳是危险的。

youdao

The current is swift.; It's a strong current.

水流很急。

《新英汉大辞典》

A strong or swift current of water.

有力或快速的水流。

youdao

A strong or swift current of water.

有力或快速的水流。

youdao