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Aerial photo taken on Dec. 9, 2017 shows the scenery of the metasequoia forest in Sihong County of Suqian City, east China's Jiangsu Province. (Xinhua/Xu Changliang)
Aerial photo taken on Dec. 9, 2017 shows the scenery of the metasequoia forest in Sihong County of Suqian City, east China's Jiangsu Province. (Xinhua/Xu Changliang)