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A man walks past flowers by the Nanhu Lake in Nanning, south China's Guangxi Zhuang Autonomous Region, on Dec. 17, 2019. (Xinhua/Lu Boan)

A man walks past flowers by the Nanhu Lake in Nanning, south China's Guangxi Zhuang Autonomous Region, on Dec. 17, 2019. (Xinhua/Lu Boan)