以y结尾的单词变y为i加es有哪些呢?答:duty,copy,capacity,facility,labtory,library,responsibility,company,activity,autobiography等等,临时想的也没写太多.以y结尾的名词变复数时 a:辅音字母+y结尾的名词,将y改变为i,再加es baby-babies family-families pony-ponies city-cities country-countries b:元音字母+y结尾的名词,名词后加一个s ...