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Visitors walk on the fallen ginkgo leaves at the Binjiang Park in Nanjing, capital of east China's Jiangsu Province, Nov. 25, 2018. (Xinhua/Yang Suping)

Visitors walk on the fallen ginkgo leaves at the Binjiang Park in Nanjing, capital of east China's Jiangsu Province, Nov. 25, 2018. (Xinhua/Yang Suping)