以辅音字母加y结尾的把y去掉加ies如 family---families fly---flies library---libraries dictionary---dictionaries accessory—accessories lady—ladies baby—babies
类似的还有很多 数不完的,重在掌握这一个规律也就是辅音字母加y结尾可数名词变复数不加s、es的喃？你是说单复数同形？people police sheep spacecraft这些还有没有再加两个