I felt like a fish out of water in my new school at first because I knew no one at that time.

我一开始在新学校的时候感觉非常不自在，因为我不认识任何人。

Can you have a fish out of water?

能让鱼离开水生活吗？

Take the sick fish out of the tank.

把生病的鱼从鱼缸里拿出来。

Don't let the fish out of the water.

不要让鱼儿离开水，也不让自己游下水。

He carefully jerked a big fish out of water.

他小心翼翼地将一条大鱼猛地拉出水面。