你问:
回答:
(a)英语单词 "fish" 一路来都是复数:例如:
"There are plenty of fish around the coast."
(b)除非句子里出现 :( a fish/one fish ),那单词 "fish" 就当单数.例如:
"I eat one fish a day."
(c) 你上面的句子都没提到 " a/one monkfish",所以 "monkfish" 就当复数,就用"they"作为代词(pronoun).
(d) "fishes" 是指 :"There are many types of fishes in the sea."