Thetroubleofhavingtochargeyoursmartphoneforhoursadaycou...
问题详情：Thetroubleofhavingtochargeyoursmartphoneforhoursadaycouldbecomeathingofthepast.Britishscientistshavecreatedamaterialthatreplacesthescreenglassforphones,i-padandsmartwatches,butusesnopower—mea...