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視聴回数: 178.5万 回2017年11月30日
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2009年1月1日
globalcitizen.org
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interestingengineering.com
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YouTubeList 25
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beebom.com
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視聴回数: 35.9万 回2017年11月13日
YouTubeThe New Yorker
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YouTubefile
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視聴回数: 568.2万 回2019年11月19日
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