[Real Engineering] GPS为何免费开放 Why Made GPS Free-To-Use
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为何美国还用华氏度 Why America still uses Fahrenheit
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【麦乐鸡块、上校鸡块这类】鸡肉块需求减少的原因 Why Chicken Nugget Demand Is Flat
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【freeschool频道】日食和月食
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脸书的剑桥分析数据丑闻 Facebook's Cambridge Analytica data scandal
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[TED-Ed] 懒为何这么慢Why are sloths so slow (注：懒包括树懒和地懒)
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【Freeschool频道】关于鲨鱼 all about sharks
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未来之家(第2集)The future of renewable energy is making it look cool
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【TED-Ed】巧克力的历史The history of chocolate
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鞋迷为何执着于一双稀有款 Why sneakerheads are obsessed with the quest for a rarer pair
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【Freeschool频道】探索珊瑚礁 Exploring the Coral Reef
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【TED-Ed】茶的历史 The history of tea
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【Freeschool频道】关于极光 All About Auroras
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完美鸡蛋五招 How To Cook Perfect Eggs Every Time
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罗马数字Roman Numerals
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物理学地图The Map of Physics
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如何带你上天 How SpaceX, Blue Origin, And Virgin Galactic Plan On Taking You To Space
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未来之家(第3集)Designing the brain of the home of the future with GrantImahara
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【TED-Ed】为什么要读战争与和平Why should you read Tolstoy's War and Peace
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未来之家(第4集)Protecting your data inside the Home of the Future
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未来之家(第5集)Controlling all your entertainment from a single device
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数学词汇的英语表达 Mathematical Terms in English
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两只野兽的故事 A Tale of Two Beasts
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【书虫牛津有声绘本/初级] 1.环球旅行80天 2.汤姆布拉德 3.威廉退尔 4.木兰
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BBC Learning English音标(第二部分 辅音)