beef
water
rice
bread这几个是没有复数形式的,因为是不可数名词
fish 鱼,可数,fishes
鱼肉,不可数,没有复数
其他的变形：
eggplant-eggplants
foot-feet
goose-geese
deer-deer
sheep-sheep
child-children
man-men
woman-women
policeman-policemen
people-people
mouse-mice beef
water
rice
bread这几个是没有复数形式的,因为是不可数名词
fish 鱼,可数,fishes
鱼肉,不可数,没有复数
其他的变形：
eggplant-eggplants
foot-feet
goose-geese
deer-deer
sheep-sheep
child-children
man-men
woman-women
policeman-policemen
people-people
mouse-mice