buses
/
foxes
/
oxes
/
wishes
/
water(这个是不可数名词,没有复数形式的)、/tomatoes
/
zoos
/wolves
/
leaves
/
giraffes
/
knives
/
beliefs
/
hippos
/cities
/watches
/months
/
children/teeth
buses
foxes
wishes
water为不可数名词,无复数形式
tomatoes
zoos
wolves
leaves
giraffe\giraffes
knives
hippos
cities
watches
months
children
teeth