file:雅思7分口语讲义.pdf file:58 Speculating about future 对未来.mp4 file:57 Problems & Solutions 问题和解决.mp4 file:56 Similarity & Difference 相似和差.mp4 file:55 Changes 变化.mp4 file:54 Pros and Cons 优势和劣势.mp4 file:53 Importance & Priority 重要性和优.mp4 file:52 Cause & Effect 原因和影响.mp4 file:51 Controversial issues 争议性话题.mp4 file:50 Opinions, agreeing & disagreein.mp4 file:48 Part2&3 物品类话题实战3精析.mp4