file:Lesson 60 Too early and too late_知识拓展（大学版）.flv file:Lesson 59 Collecting_知识拓展（大学版）.flv file:Lesson 41 Illusions of Pastoral peace_知识拓展（大学版）.flv file:Lesson 27 Nothing to sell and nothing to buy_知识拓展（大学版）.flv file:Lesson 26 Wanted a large biscuit tin_知识拓展（大学版）.flv file:Lesson 24 A skeleton in the cupboardr_知识拓展（大学版）.flv file:Lesson 23 One man’s meat is another man’s poison_知识拓展（大学版）.flv file:Lesson 18 Electric currents in modern art_知识拓展（大学版）.flv file:Lesson 17 The longest suspension bridge in the world_知识拓展（大学版）.flv file:Lesson 15 Fifty pence worth of trouble_知识拓展（大学版）.flv file:Lesson 4 The double life of Alfred Bloggs_知识拓展（大学版）.flv file:Lesson 3 An unknown goddess_知识拓展（大学版）(1).flv

file:Lesson 48 Planning a share portfolio_知识拓展（大学版）.flv file:Lesson 47 The great escape_知识拓展（大学版）.flv file:Lesson 25 Non-auditory effects of noise_知识拓展（大学版）.flv file:Lesson 21 William S.Hart and the early‘Western’film_知识拓展（大学版）.flv file:Lesson 15 Secrecy in industry_知识拓展（大学版） .flv file:Lesson 1 Finding fossil man_知识拓展（大学版） .flv file:Lesson 9 Royal espionage 课文讲解.flv file:Lesson 8 Trading standards 单词讲解.mp4

file:Lesson 99-100 Ow!_知识拓展（成人版）.flv file:Lesson 97-98 A small blue case_知识拓展（成人版）.flv file:Lesson 85-86 Paris in the spring_知识拓展（成人版）.flv file:Lesson 81-82 Roast beef and potatoes_知识拓展（成人版）.flv file:Lesson 73-74 The way to King Street _知识拓展（成人版）.flv file:Lesson 129-130 Seventy miles an hour_知识拓展（成人版）.flv