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名词变复数1一般名词复数是在名词后面加上“s”,如mapmaps, bagbags等; 2以s, sh, ch, x等结尾的词加“es”,如busbuses, watchwatches等; 3以辅音字母y结尾的词,变y为i加es,如babybabies等;以元音字母 y结尾的名词变复数时,直接加s变复数,如monkeymonkeys, holidayholidays, storeystoreys(楼层); 4以o 结尾的名词变复数时: a)加s的名词有:photophotos ,pianopianos, radioradios, zoozoos b)加es的名词有: potatopotatoes tomatotomatoes 5以f或fe结尾的名词变复数时: a)加s的名词有: beliefbeliefs roofroofs safesafes gulfgulfs b)去掉f, fe 加ves的名词有: halfhalves knifeknives leafleaves wolfwolves wifewives lifelives thiefthieves