People ski at a skiing park in Luquan District in Shijiazhuang, capital of north China's Hebei Province, Dec. 9, 2018. (Xinhua/Zhang Xiuke)

　　People ski at Tuoshan skiing park in Qingzhou City, east China's Shandong Province, Dec. 9, 2018. (Xinhua/Wang Jilin)

　　People ski at a skiing park in Luquan District in Shijiazhuang, capital of north China's Hebei Province, Dec. 9, 2018. (Xinhua/Zhang Xiuke)

　　People ski at Tuoshan skiing park in Qingzhou City, east China's Shandong Province, Dec. 9, 2018. (Xinhua/Wang Jilin)

　　People ski at Tuoshan skiing park in Qingzhou City, east China's Shandong Province, Dec. 9, 2018. (Xinhua/Wang Jilin)

　　A boy skis at a skiing park in Luquan District in Shijiazhuang, capital of north China's Hebei Province, Dec. 9, 2018. (Xinhua/Zhang Xiuke)

　　People ski at a skiing park in Luquan District in Shijiazhuang, capital of north China's Hebei Province, Dec. 9, 2018. (Xinhua/Zhang Xiuke)