名词变复数不规则变化f,fe-v+esthiefthieves （小偷）selfselves（自己）leafleaves(叶子) life-lives （命）half-halves；（一半） wife-wives （妻子）shelfshelves（架）knife-knives（刀） wolfwolves（狼） roofroofs（屋顶）chefchefs(厨师) scarfscarfs,scarves( 围巾)词形不变Chinese Japanese sheep deer Swiss 中日羊鹿瑞士人变成eman-men Englishman-Englishmen Frenchman-Frenchmen foot-feet tooth-teeth 只有复数clothes pants trousers shorts scissors (剪刀)compasses (圆规) glasses(眼镜)形复实单news maths politics physics形单实复ca
