tread water

I tread water for three days in a row.

有时,我可以连续三天踩水.

If you can't get back to the beach, tread water and wave for a lifeguard's help.

假如你无法游回岸边, 可踩水并向救生员挥手求救.

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.

I could either tread water until I was promoted, which looked to be a few years away, or I could change what I was doing.

我要么原地踏步直到获得晋升（这看来得是几年以后的事了），要么改变现在正做的事情。

Can you tread water?

你会踩水 吗 ?

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.