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Combo photo shows the site of Shanxi Xiaohe National Wetland Park in Xiaoyi City, north China's Shanxi Province on May 29, 2012 (L) and June 10, 2017 respectively. (Xinhua/Wu Jinzhou)
Combo photo shows the site of Shanxi Xiaohe National Wetland Park in Xiaoyi City, north China's Shanxi Province on May 29, 2012 (L) and June 10, 2017 respectively. (Xinhua/Wu Jinzhou)