An aerial photo taken on Oct. 19, 2015 shows a wetland in Wugen Township of Wenling City, east China's Zhejiang Province. (Photo: Xinhua/Wu Pengfei)
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An aerial photo taken on Oct. 19, 2015 shows a wetland in Wugen Township of Wenling City, east China's Zhejiang Province. (Photo: Xinhua/Wu Pengfei)