library的复数
library的复数是libraries,library是以辅音字母加-y结尾,所以应该改y为i再加-es。例如:city-cities,story-stories,party-parties,lady-ladies,diary-dia...
library的复数是libraries,library是以辅音字母加-y结尾,所以应该改y为i再加-es。例如:city-cities,story-stories,party-parties,lady-ladies,diary-dia...