ox复数是 oxes注名词复数的变化规则规则变化1一般在词尾加s, 如 room- rooms2 以s,x,ch,sh结尾的加 es如 bus-buses, box-boxes, watch-watches,dish-dishes3 以辅音字母加y结尾,先把y改为i再加esbaby-babies4以 f/fe结尾,把 f/fe改为v再加es如 leaf- leaves, knife-knives5 以 o结尾的名词,有生命的加es,没生命的加s如 tomato-tomatoes,radio-radios不规则变化 (要牢记)foot-feetchild-childrenman-men