fish可能是單數也是復數形式，fish的復數形式可以是fish或 fishes，fish用作可數名詞時,意為“魚”,單數形式表示“一條條的魚”。fish用作不可數名詞時意思是“魚肉”。fish也可按規則變化變為fishes，常表示“許多種類的魚”。

fish相關語

1.a fish out of water

離水之魚；在陌生環境不得其所的人

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

還有更重要的事情要做；另有他圖

to have more important or more interesting things to do

3.neither fish nor fowl

非驢非馬；不倫不類

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

海里的魚有的是；還有很多一樣好的（人或事物）

there are many other people or things that are as good as the one sb has failed to get

6.a big fish (in a small pond)

（小圈子里的）大人物

an important person (in a small community)