Putting Hurricane Harvey In PerspectiveBe Smart·고급·4:22·175 wpm정보좋아요저장공유0:000:00재생 속도0.5×0.75×1×1.25×1.5×1010Be Smart의 다른 영상6:26Are We All Related?Be Smart고급164 wpm7:32Why Are We The Only Humans Left?Be Smart중급148 wpm6:05Why Do We Itch?Be Smart중급128 wpm13:237 Scientific Urban Legends Debunked!Be Smart중급146 wpm
