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![Lookcloselyatyourhands.Aretheyclean?Itdoesn'tmatterhow...]( "Lookcloselyatyourhands.Aretheyclean?Itdoesn'tmatterhow...")
Lookcloselyatyourhands.Aretheyclean?Itdoesn'tmatterhow...
问题详情：Lookcloselyatyourhands.Aretheyclean?Itdoesn'tmatterhowmanytimesyouwashyourhands,tinymicrobes(微生物)stillstayonthem.Butdon'tworry.Mostmicrobesdon'tharmyou.Nowscientistssaythemicrobesonourha...
