Sophia, a life-like humanoid robot made in the United States, is pictured at the UN headquarters in New York, Oct. 11, 2017. Sophia attended a meeting on "The Future of Everything - Sustainable Development in the Age of Rapid Technological Change" here. Life-like humanoid robot, AlphaGo, driverless car etc., more and more artificial intelligence (AI) technology are shaping the world and our future life. From Las Vegas' shooting spree to Manhattan's truck attack, from Texas' Hurricane Harvey to California's wildfires, from the advancing bull stock market to once-in-a-century total solar eclipse across U.S., seventeen photos covered the impressive moments of Americans through out the year. They were typical faces of the Americans, epitomizing the year of 2017 and reflecting the duplicity of their lives. (Xinhua/Li Muzi)