问题描述： This isn't my MP4 player.__ is at my uncle's.填MINE为什么AT怎么解释 1个回答 分类：英语 2014-12-16 问题解答： 我来补答 mine=my MP4 player mine是名词性物主代词at my uncle's= at my uncle's home.My MP4 player is at my uncle's home. 展开全文阅读
