Ifyouseeagroupofpeopledancingandsingingonthestreetorint...
问题详情：Ifyouseeagroupofpeopledancingandsingingonthestreetorintherailwaystation,youdon’tneedtofeelsurprised.Theyareaflashmob(快闪族).Don’tbeconfusedbytheirname.Actually,aflashmob,organizedwiththehel...