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Citizens pose for photos before a 300-year-old wintersweet tree at Luquan District in Shijiazhuang, capital of north China's Hebei Province, Jan. 22, 2018. (Xinhua/Zhan Xincheng)
Citizens pose for photos before a 300-year-old wintersweet tree at Luquan District in Shijiazhuang, capital of north China's Hebei Province, Jan. 22, 2018. (Xinhua/Zhan Xincheng)