来自孟书苹的问题
【小学英语名词变复数改成变复数policemanboysweaterfamilybuspostmanboxpencil-boxchairshopfootcitysheifchitdtooth】
小学英语名词变复数
改成变复数
policeman
boy
sweater
family
bus
postman
box
pencil-box
chair
shop
foot
city
sheif
chitd
tooth
