fish的复数形式：fishes、fish。指鱼的种类时用fishes，其它情况复数用fish。例如，two fish，两条鱼；two fishes，两种鱼。
fish基本含义
n. 鱼; 鱼肉;
v. 钓鱼; 捕鱼; 在…捕鱼(或钓鱼);
第三人称单数：fishes
复数：fishes
现在分词：fishing
过去式：fished
过去分词：fished
fish相关习语
1.a fish out of water
离水之鱼；在陌生环境不得其所的人
a person who feels uncomfortable or awkward because he or she is in surroundings that are not familiar
2.have bigger/other fish to fry
还有更重要的事情要做；另有他图
to have more important or more interesting things to do
3.neither fish nor fowl
非驴非马；不伦不类
neither one thing nor another
4.an odd/a queer fish
(old-fashioned, BrE) 古怪的人；有些荒唐的人
a person who is slightly strange or crazy
5.there are plenty more fish in the sea
海里的鱼有的是；还有很多一样好的（人或事物）
there are many other people or things that are as good as the one sb has failed to get