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President Xi Jinping and guests prepare for a group photo after the first session of the Leaders Roundtable of the Belt and Road Forum (BRF) for International Cooperation at Beijing Huairou International Conference center at Yanqi Lake on Monday. WU ZHIYI/CHINA DAILY

President Xi Jinping, foreign delegation heads and guests pose for a group photo at the Leaders' Roundtable Summit of the Belt and Road Forum for International Cooperation at Yanqi Lake International Convention Center in Beijing, May 15, 2017. [Photo/Xinhua]

United Nations Secretary-General Antonio Guterres (left), International Monetary Fund Managing director Christine Lagarde (middle) and Swiss Confederation president Doris Leuthard enter the venue of the Leaders Roundtable in Beijing on Monday. XU JINGXING/CHINA DAILY