P15 light sound electricity motion magnets
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P42 美国中小学精选课程 exploring electricity | forces | work | sources of heat | light an
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P24 soil homes | energy | electricity | sharks | pacific ocean
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李咏梅老师初中英语（音标部分）——最牛的初中英语老师！永远的神！
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我在B站上大学!【完整版-麻省理工-微积分重点】全18讲！学数学不看的微积分课程，看完顺滑一整年。_人工智能数学基础/机器学习/微积分/麻省理工/高等数学
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saving natural resources. | matter and senses. | observing matter
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【24集全】《白牙》适合每天磨耳朵，绝佳的口语素材（英文字幕）
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P18 goods and services | spending and saving | here on earth | weather and se
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P13 what animals need to grow. living things vs nonliving things . people find
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【雅思口语】一个又狠又穷的口语练习方法（已迭代多次）
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P33 home away form home | the worlds greatest traveler | what a farmer knows | a
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P14 measuring the weather clouds and rain seasons the sky heat
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【美国中小学精选课程】 P6. 【006】Where Animals Live
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P34 sight words 100 level.1
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P23 how old is that tree | save the forests | the seasons | bad weather |dirt
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P36 美国中小学课程精选 sight words
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能听懂这段英文，说明你真的很厉害哦
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P47 美国中小学精选课程 go west | the end of slavery | changes in people lives | work and
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P20 the pledge of allegiance | changes in transportation | people start coming
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P35 sight words 100 level.1
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P21 from factory to you | visiting the market | city town and suburb | our resou
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P28 what's after seven | fire under the earth | never a warm day | fossil fue
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【美国中小学精选课程】 P10. 【010】Rocks and Soil
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【美国中小学精选课程】 P1. 【001】Parts of Plants
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【美国中小学精选课程】 P9. 【009】Natural Resources
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P43 美国中小学生课程精选 types of groups | living in a neighborhood | types of communitie
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P30 computer movies | mighty paul bunyan | along came a mouse | a dream job | am
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【美国中小学精选课程 】P8. 【008】How Does Earth Change
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P29 too coll | bravo encore | worker of the year | early robots | robot actors
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P26 eclipse | how much do you weigh| bones | that's tall | staying healthy
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P44 美国中小学精选课程 working for justice | the first americans | explorers and early am
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【美国中小学精选课程】 P5. 【005】Body Parts of Animals
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P48 美国中小学精选课程 in the bank | maps and locations | various landforms | earth res
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P22 not just for food | keeping warm | animals help people | your senses | all
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学连读-发音技巧-语音-语调~Rachel's English-with movies
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经典回顾 如何用英语思考，建立你的英语大脑 ？Building Your English Brain？
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【美国中小学精选课程】 P4. 【004】Type of Animals
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老实人，如何防止别人套话？
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【美国中小学精选课程】 P3. 【003】What Plants Need to Grow
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【英语全集 | 父与子双语】看动画学习英语
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生命的真谛 The True Meaning Of Life