Bulbs/lights电灯泡Justimaginewhatourworldwouldbelikewithoutlightsatnight.Therewouldbenoroadlights,thecitieswillbeindarkness.Howwouldpeoplethecolourfulnightlifewithoutlights...
whydoyouthinkitisthemostusefulinvention?
您好,我在“电灯”下面写的那么多都是原因啊百度教育团队【海纳百川团】为您解答如满意,请点击“选为满意答案”按钮,谢谢~