file:打开必读.txt file:9字母音标学习（9）.mp4 file:15字母及字母组合发音规律.mp4 file:14英语单词发音技巧简述.mp4 file:076_Review 4.wmv file:075_Lesson 72 A walk through the woods.wmv file:074_Lesson 71 Sally's first train ride.wmv file:073_Lesson 70 Is that you, John$%.wmv file:072_Lesson 69 A pleasant dream.wmv file:070_Lesson 67 Sensational news!.wmv file:069_Lesson 66 Don't be so sure!.wmv file:068_Lesson 65 Seventy miles an hour.wmv file:9.mp4 file:73.wmv file:Unit 3 Review.wmv file:Lesson 9 Flying Cats.mp4 file:Lesson 8 A famous monastery.mp4 file:新概念英语第二册（sue）99.mp4