名词原形是fish，例如：

1、The fish lay thousands of eggs at one time.这种鱼一次产卵数千个。

2、These fish are found in shallow waters around the coast.这些鱼生长在海边浅水水域。

3、I've never been a great one for fish and chips.我从来不是个好吃炸鱼薯条的人。