A citizen takes photos of snow views in the Nanshan Ecological Park in Kongtong District of Pingliang City, northwest China's Gansu Province, Nov. 5, 2018. (Xinhua/Yang Xin)

　　Citizens walk as it snows in the Nanshan Ecological Park in Kongtong District of Pingliang City, northwest China's Gansu Province, Nov. 5, 2018. (Xinhua/Wu Xihui)

　　Photo taken on Nov. 5, 2018 shows the scenery after a snowfall in the Nanshan Ecological Park in Kongtong District of Pingliang City, northwest China's Gansu Province. (Xinhua/Yang Xin)