http://www.engvid.com I am going to show you how to master your vocabulary using four simple steps. This is an important class for anyone learning a language. Learn how to never forget words again. And remember to take the quiz at http://www.engvid.com/how-to-master-your-vocabulary/ !

원문출처 : http://www.youtube.com/watch?v=CFXkEGRwfcs&feature=youtube_gdata