file:词汇20000词频教材.xlsx file:《新思维词汇速记》讲义.pdf file:语法课L3下.mp4 file:语法课 Lesson 4（下）.mp4 file:导学.mp4 file:Lesson34超高频词根.mp4 file:Lesson 26 超高频词根cresc,creas,creat,cre,cret；clim,clin.mp4 file:Lesson 25 超高频词根center,centr;cert,cern,cret;cur(e)等.mp4