Like a closed book? 2019-10-30 | 分类：英语常识 | 浏览:1999Reader question:Please explain “closed book” in this sentence: When he was in th
Behind closed doors[1]——查字典英语网 2016-11-03 | 分类：英语常识 | 浏览:1999分享一篇文章：There is a college town in suburban Nanjing, called Xianlin. Like most co
