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哈佛学霸亲授背单词秘籍，轻松掌握必会单词，从此告别死记硬背。
少年得到《哈佛学霸带你搞定4000必会单词》15.4GB
105_15_The_Weather_and_Water_Cycle_天气与水.mp4179.18MB104_14_The_History_of_the_Earth_地球的历史.mp4154.6MB103_13_Heredity_遗传.mp4137.01MB102_12_Classifying_Living_Things_生物的分类.mp4137.63MB101_11_Inquiry_Skills_and_Science_Tools.mp4186.58MB100_10_The_Civil_War_美国南北战争.mp4167.23MB099_09_Europe_in_the_Middle_Ages_中世纪的欧洲.mp4149.6MB098_08_Asian_Cultures_亚洲文化.mp4127.34MB097_07_Mountains,_Rivers,_and_Deserts.mp4151.25MB096_06_The_Mountain_States_of_the_Unit-.mp4165.92MB095_05_The_Midwest_Region_of_the_United.mp4156.83MB094_04_The_Northeast_Region_of_the_Uni-.mp4202.13MB093_03_The_Southeast_Region_of_the_Uni-.mp4204.99MB092_02_The_Southwest_Region_of_the_Uni-.mp4151.18MB091_01_The_West_Region_of_the_United_S-.mp4185.49MB090_30_A_World_of_Music音乐的世界.mp4134.85MB089_29_Elements_of_Music_音乐的元素.mp4152.46MB088_28_Creating_Designs_创造设计.mp4127.18MB087_27_Appreciating_Artwork_艺术鉴赏.mp4139.21MB086_26_Learning_About_Language_学习语言.mp4173.55MB085_25_Myths_from_Ancient_Greece古希腊神话.mp4173.05MB084_24_Measurement测量.mp4129.79MB083_23_Multiplication_and_Division乘法和除法.mp4135.07MB082_22_Geometry几何学.mp4174.32MB081_21_Fractions_分数.mp4169.92MB080_20_The_Senses各种感官.mp4147.2MB079_19_The_Universe_宇宙.mp4132.62MB078_18_Weather_and_the_Water_Cycle天气和水循.mp4147.23MB077_17_Earth’s_Changing_Surface地表的变化.mp4137.12MB076_16_Conserving_Our_Resources_保护资源.mp4158.52MB075_15_Earth’s_Rocks_and_Soil_地球的岩石和土壤.mp4157.24MB074_14_Ecosystems_生态系统.mp4190.61MB073_13_Food_Chains_食物链.mp4179.85MB072_12_A_World_of_Animals_动物的世界.mp4143.74MB071_11_A_World_of_Plants_植物的世界.mp4188.72MB070_10_Ancient_Rome_古罗马.mp4177.82MB069_09_Ancient_Greece_古希腊.mp4167.09MB068_08_Ancient_Egypt_古埃及.mp4203.36MB067_07_The_Government政府部门.mp4172.78MB066_06_Geography_Skills_地理技能.mp4172.55MB065_05_Living_in_Different_Climates_生活在.mp4147.16MB064_04_Technology_Changes_the_World科技改变.mp4152.59MB063_03_Goods_and_Resources_商品与资源.mp4181.26MB062_02_Earning,_Spending,_and_Saving_收入.mp4165.1MB061_01_Laws_and_Rules_法律与规范.mp4235.84MB060_30_Musical_Instruments_乐器.mp4165.93MB059_29_Many_Kinds_of_Music_音乐的种类.mp4195.86MB058_28_Architecture建筑学.mp4173.6MB057_27_Visual_Arts_视觉艺术.mp4138.29MB056_26_Familiar_Sayings_常见格言与谚语.mp4202.56MB055_25Leaning_About_Language_如何学习语言.mp4257.27MB054_24_Multiplication_and_Division_乘法与除.mp4113.06MB053_23_Solid_Figures_and_Plane_Figures.mp4171.53MB052_22_Time_时间.mp4117.82MB051_21_Numbers_from_1_to_100_数字：从1到100.mp4179.81MB050_20_Sound_声音.mp4187.28MB049_19_Motion_and_Forces_运动与力.mp4183.91MB048_18_The_Human_Body_人体.mp4189.29MB047_17_The_Solar_System_太阳系.mp4146.66MB046_16_Insects_昆虫.mp4141.25MB045_15_The_Food_Chain_食物链.mp4149.77MB044_14_Plants_植物.mp4164.58MB043_13_The_Life_Cycle_of_an_Animal_动物的生.mp4136.73MB042_12_Kinds_of_Animals动物的种类.mp4177.78MB041_11_Living_and_Nonliving_Things_生物与.mp4161.78MB040_10_American_Independence_美国独立.mp4157.65MB039_09_The_English_Come_to_American_英国人.mp4176.89MB038_08_The_Europeans_Come_to_the_New_W-.mp4204.27MB037_07_The_Early_Americans早期的美国人.mp4166.48MB036_06_Native_Americans_and_Their_Cult-.mp4173.83MB035_05_American_Federal_and_Local_Gove-.mp4139.44MB034_04_The_Geography_of_the_United_Sta-.mp4212.8MB033_03_Lots_of_Jobs_各种工作.mp4151.94MB032_02_Moving_to_a_New_Community_移居新国家.mp4166.25MB031_01_Building_Citizenship_建立公民权.mp4218MB030_30_A_World_of_Music_音乐的世界.mp4119.76MB029_29_Instruments_and_Their_Families.mp4151.02MB028_28_A_World_of_Paintings_绘画的世界.mp4144.43MB027_27_A_World_of_Lines_and_Colors_线条与色.mp4122.06MB026_26_Types_of_Writing_写作的类型.mp4169.33MB025_25_Read_and_Write_阅读和写作.mp4176.81MB024_24_Counting_Money_数钱.mp4131.94MB023_23_Addition_and_Subtraction_加法和减法.mp4100.36MB022_22_Numbers_and_Counting数字和计数.mp492.27MB021_21_Shapes_形状.mp4142.76MB020_20_Inside_the_Earth_地球的内部.mp479.23MB019_19_Our_Solar_System_太阳系.mp4159.5MB018_18_Electricity_电.mp4147.11MB017_17_How_Long？How_Tall？多长？多高？.mp4148.23MB016_16_How_Can_Matter_Change？物质如何变化？.mp4123.42MB015_15_The_Human_Body_人体.mp4147.98MB014_14_Oceans_and_Undersea_Life_海洋和水生生物.mp4157.18MB013_13_Homes_for_Living_Things_生物的栖息地.mp4147.81MB012_12_The_Parts_of_a_Plant_植物的组成部分.mp4150.02MB011_11_Seasons_and_Weather_季节与气候.mp4113.4MB010_10_Native_Ameiricans_and_Europeans.mp4113.96MB009_09_Our_Earth_and_Its_Resources_我们的地.mp4114.58MB008_08_Maps_and_Directions_地图与方位.mp4122.31MB007_07_Oceans_and_Continents_海洋与大洲.mp4127.03MB006_06_Our_Land_and_Water_土地与水资源.mp4117.15MB