鱼为什么是不可数名词?
3个回答

只有一种情况下fish是可数名词,即如果有好多不同种类的鱼时,如There are a lot of fishs in aquarium;

其他情况下fish做鱼肉或含义在同一种类内时都为不可数,如I had fish and meat this morning.

There are two fish in the rive