问题描述: I don't know why Jack is worried;___,it isn't his his problem. 1个回答 分类:综合 2014-12-11 问题解答: 我来补答 However 然而祝你新年快乐,学习更上一层楼!请记得采纳,谢谢!(*^__^*) 展开全文阅读