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可数名词单数变复数规则1、一般直接在词尾加scatscatdogmonkeycarpeardogsmonkeyscarspears2、四大尾巴(s,sh,ch,x)后加esclassesclassbrushpeachboxbrushespeachesboxes3、以”o”结尾:黑人英雄爱吃土豆和西红柿复数+esnegroesnegroherotomatopotatoheroestomatoespotatoeszoozoos其余o结尾的词加s4、以字母f\fe,结尾，变f\fe为v,加eswolveswolfwifeshelfknifewivesshelvesknivesleafleaves5.以辅音字母+y结尾,变y为i,加esstoriesstorybabycitymonkeybabiescitiesmonkeysboyboys以元音字母+y结尾,只加s6、不规则变化menmanwomanfoottoothwomenfeetteethgoosegeesechildchildrenmousemicelouselice男女脚步牙鹅，儿童老鼠虱婆7、单复数同形Chinesefishdeersheep中国人喜爱鱼、鹿、羊Chinesefishdeersheep