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The opening ceremony of the 22nd General Assembly of the United Nations World Tourism Organization (UNWTO) is held in Chengdu, capital of southwest China's Sichuan Province, Sept. 13, 2017. (Xinhua/Jiang Hongjing)
The opening ceremony of the 22nd General Assembly of the United Nations World Tourism Organization (UNWTO) is held in Chengdu, capital of southwest China's Sichuan Province, Sept. 13, 2017. (Xinhua/Jiang Hongjing)