Index of /学习资源/英语/外研社/新概念英语4册/第四册网课视频/第四册拓展大学版/41-48

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• Lesson 41 Training elephants_知识拓展（大学版） .flv
• Lesson 42 Recording an earthquake_知识拓展（大学版）.flv
• Lesson 43 Are there strangers in space_知识拓展（大学版）.flv
• Lesson 44 Patterns of culture_知识拓展（大学版）.flv
• Lesson 45 Of men and galaxies _知识拓展（大学版）.flv
• Lesson 46 Hobbies _知识拓展（大学版）.flv
• Lesson 47 The great escape_知识拓展（大学版）.flv
• Lesson 48 Planning a share portfolio_知识拓展（大学版）.flv