不一样
不可数名词是没办法数的,water,air,rain
无复数只是字面不加复数（大多数本身字面已经是复数）,但本身可数,
pants one pair of pants,tow pairs of pant
glasses one pair of glasses,three pairs of glasses
fish one fish,two fish
不一样
不可数名词是没办法数的,water,air,rain
无复数只是字面不加复数（大多数本身字面已经是复数）,但本身可数,
pants one pair of pants,tow pairs of pant
glasses one pair of glasses,three pairs of glasses
fish one fish,two fish