Obama:奥巴马：Hello, Chicago.您好，芝加哥。If there is anyone out there who still doubts that America is a place where all things are possible, who still wonders if the dream of our founders is alive in our time, who still questions the power of our democracy, tonight is your answer.美国是否暗藏一切皆有可能的巨大潜力？美国是否已经实现开国者锻造的美国梦？民主信仰是...
