英文单位要不要用复数四公斤鱼 4 kilo of fish 还是 4 kilos of fish?

英文单位要不要用复数四公斤鱼 4 kilo of fish 还是 4 kilos of fish? this kind of fish 后面用单数还是复数 this kind of fish (come/comes)fr a lot of fish fish要加复数吗? 什么时候用kilos,什么时候用kilo,什么时候用kilo of? cats like to eat fish.fish要不要复数 three kilo tomatoes还是three kilos of tomatoes I'd like two kilos of fish 对two提问 Two kilos of fish is enough.语句是否正确? I would like two kilos of fish .对two kilos of 提问. I'd like two kilos of fish对two kilos of提问 l'd like two kilos of fish 对 two kilos提问 many different kinds of fish中的fish不是表示鱼的种类吗?为什么不用复数