点击查看:2014年12月四级作文模板:书信写作型范文汇总 点击下载 四六级手机题库 全真模拟试题+历年真题>>> 四级作文题目:Your Help Needed Dear friends, I am writing to you, on behalf of the Student Union, to ask for your help for Li Ming, a schoolmate of ours from the Department of Computer ...