tom's father asked him to help him carry some cotton on the donkey to sell on the market
问题描述：
tom's father asked him to help him carry some cotton on the donkey to sell on the market
on the donkey
句子里的ON是代表什么意思 on the donkey
答
on the donkey 是在驴身上的背着的 做cotton棉花的定语
翻译: Tom的父亲叫他帮忙把驴身上的驮着的棉花带到市场上卖.