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![CHINA-YUNNAN-UNDERGROUND CAVE (CN)](136634321_15062517226241n.jpg)
Photo taken on Sept. 23, 2017 shows the scenery of the underground Dragon Cave in Longdong Village of Xuanwei City, southwest China's Yunnan Province. (Xinhua/Yang Zongyou)
Photo taken on Sept. 23, 2017 shows the scenery of the underground Dragon Cave in Longdong Village of Xuanwei City, southwest China's Yunnan Province. (Xinhua/Yang Zongyou)