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Photo taken on Sept. 20, 2017 shows the 22nd Greater Mekong Subregion (GMS) Ministerial Conference held in Vietnam's capital Hanoi. (Xinhua/Le Yanna)
Photo taken on Sept. 20, 2017 shows the 22nd Greater Mekong Subregion (GMS) Ministerial Conference held in Vietnam's capital Hanoi. (Xinhua/Le Yanna)