China's Vice Minister of Water Resources Jiao Yong speaks during a trilateral ministerial meeting at the seventh World Water Forum held in Gyeongju, South Korea, April 13, 2015. China, South Korea and Japan on Monday agreed to strengthen trilateral cooperation on water policy innovation during the seventh World Water Forum held in South Korea's southeastern cities of Daegu and Gyeongju. (Xinhua/Peng Qian)
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