中国福彩网375|中国福彩网我的积分
VOA慢速英語視頻:Sides Debate Use of Genetically-Modified Crops in Africa2018-05-09
VOA慢速英語視頻:Seventy-year-old College Student Graduates2018-05-09
VOA慢速英語視頻:Senegal Uses Technology to Teach Reading2018-05-09
VOA慢速英語視頻:Sea Shepherd Joins Senegal's Campaign Against Poaching2018-05-09
VOA慢速英語視頻:Scientists Search for a New Way to Stop Mosquitoes2018-05-09
VOA慢速英語視頻:Scientists say Neglected Plants Could Help Fight Hunger in Africa2018-05-09
VOA慢速英語視頻:Scientists Explore the Healing Power of Rhythm2018-05-09
VOA慢速英語視頻:Scientists Base a Hearing Aid Design on the Ears of a Fly2018-05-09
VOA慢速英語視頻:Schools in Cameroon Face Boko Haram Threat2018-05-09
VOA慢速英語視頻:School Attendance by Australian Aborigines Linked to Aid to Parents2018-05-09
VOA慢速英語視頻:Savers Have Many Choices in the US2018-05-01
VOA慢速英語視頻:Safety Concerns Raised for Ride-Sharing Service2018-05-01
VOA慢速英語視頻:Robots Can Do Dirty, Dangerous Jobs2018-05-01
VOA慢速英語視頻:Rights Groups Demand End to Schoolchildren’s Begging2018-05-01
VOA慢速英語視頻:Researchers: Training Improves Mental Skills in Older People2018-05-01
VOA慢速英語視頻:Researchers Look for Non-traditional Ways to Fight Weeds2018-05-01
VOA慢速英語視頻:Researchers Develop Method for Printing Tissue2018-05-01
VOA慢速英語視頻:Researchers Develop a Better Soybean Using a Computer2018-05-01
VOA慢速英語視頻:Researchers at Virginia Tech to Help Make Drone Rules2018-05-01
VOA慢速英語視頻:Research Say Ideas About Music and Intelligence Are Mistaken2018-05-01
VOA慢速英語視頻:Reports of Rape, Abuse Surface at a School in Jakarta2018-04-19
VOA慢速英語視頻:Raw Chocolate May Be Healthier2018-04-19
VOA慢速英語視頻:Racial Segregation in US Public Schools Struck Down 60 Years Ago2018-04-19
VOA慢速英語視頻:Questions About China’s College Entrance Exams Could Lead to Changes2018-04-19
VOA慢速英語視頻:Punishment Policies Are Changing in US High Schools2018-04-19
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