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HANGZHOU, CHINA - SEPTEMBER 04: Chinese President Xi Jinping (right) shakes hands with Director-General of the World Trade Organization (WTO) Roberto Azevedo to the G20 Summit at the Hangzhou International Expo Center on September 4, 2016 in Hangzhou, China. World leaders are gathering in Hangzhou for the 11th G20 Leaders Summit from September 4 to 5. (Photo by Lintao Zhang/Getty Images)