ISSUE中有一类题目要求中有这么一句：“In developing and supporting your position, be sure to address the most compelling reasons and/or examples that could be used to challenge your position”我想知道关于其中的challenge在文章中该具体怎么表现？？
不胜感激！！作者: panmingming2008 时间: 2011-12-10 16:14:29