trodden water的用法和樣例：
例句
- Joan has been very good for me. Until18 months ago, I realize that I was just treading water. Now I've regained my enthusiasm for so many things.
瓊對我一直很好。一年半以前，我認識到我只是在懶懶散散地混日子，現在我對許多事又重新有了熱情。 - The crew of the capsized yacht had to tread water until the rescuers arrived.
那艘快艇傾覆了，人們在營救人員到達以前只得踩水。
