Update README.md

README.md

@@ -24,6 +24,8 @@ GRE复习主要用：
   > [新GRE填空(台湾麟渡兮老师)]
   
   > [杨鹏的长难句总结]
+  
+  > [Verbal Advantage: Ten Easy Steps to a Powerful Vocabulary]
 
 TOEFL复习主要用：
   > [TPO]
@@ -49,3 +51,4 @@ TOEFL复习主要用：
 [阅读三十六套]: https://github.com/hot13399/FLY_US/tree/master/GRE/%E9%98%85%E8%AF%BB/%E9%99%88%E8%99%8E%E5%B9%B3%E9%98%85%E8%AF%BB36%E5%A5%97
 [新GRE填空(台湾麟渡兮老师)]: https://github.com/hot13399/FLY_US/blob/master/GRE/%E5%A1%AB%E7%A9%BA/%E6%96%B0GRE%E5%A1%AB%E7%A9%BA(%E5%8F%B0%E6%B9%BE%E9%BA%9F%E6%B8%A1%E5%85%AE%E8%80%81%E5%B8%88).pdf
 [杨鹏的长难句总结]: https://github.com/hot13399/FLY_US/blob/master/GRE/%E9%98%85%E8%AF%BB/%E6%9D%A8%E9%B9%8F%E7%9A%84%E9%95%BF%E9%9A%BE%E5%8F%A5%E6%80%BB%E7%BB%93.pdf
+[Verbal Advantage: Ten Easy Steps to a Powerful Vocabulary]: http://www.amazon.cn/Verbal-Advantage-Ten-Easy-Steps-to-a-Powerful-Vocabulary-Elster-Charles-Harrington/dp/0375709320/ref=cm_cr_pr_bdcrb_top?ie=UTF8