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Tourists walk through the garden on the Qiongbei grassland in Wenchang City, south China's Hainan Province, Feb. 12, 2018. (Xinhua/Guo Cheng)

Tourists walk through the garden on the Qiongbei grassland in Wenchang City, south China's Hainan Province, Feb. 12, 2018. (Xinhua/Guo Cheng)