踩水

The swimmer trod water before beginning the long swim to the shore.

该泅渡者在向对岸作长距离泅渡之前，在水中保持着踩水姿势。

He kept afloat by treading water.

他靠踩水来保持身体不向下沉。

The crew of the capsized yacht had to tread water until the rescuers arrived.

那艘快艇倾覆了，人们在营救人员到达以前只得踩水。

Occasionally, I tread water for three days in a row.

我的工作效率很高。有时， 我可以连续三天踩水。

I tread water for three days in a row.

有时，我可以连续三天踩水。