奥巴马2017年告别演说关键词汇词汇表

view concede lower believe such achieve bear black loss insistence goal halve maybe potent effective effect honor avoid used further easy racism protect propose volunteer net living around security argue live program friend accept anyone bill process common impossible best principle drive nuclear stretch swing ignore press ultimate liberty ideal agree force get advice founder advantage assured making dependence obligation doctor action post account steel Islam creation hope amaze close wage stop poor district trend eventual democracy display civil staff presence church choice military plant child risk figure spirit fifty rigid extraordinary speech healthy tonight lure worthy yourself channel feed change chance reverse challenge retreat more title money rest moment