People walk in Yuxi park in Shijiazhuang, capital of north China's Hebei Province, Nov. 16, 2018. (Xinhua/Liu Peiran)

　　A man practises calligraphy in Yuxi park in Shijiazhuang, capital of north China's Hebei Province, Nov. 16, 2018. (Xinhua/Liu Peiran)

　　Aerial photo taken on Nov. 16, 2018 shows the winter scenery of Yuxi park in Shijiazhuang, capital of north China's Hebei Province. (Xinhua/Liu Peiran)

　　People walk in Yuxi park in Shijiazhuang, capital of north China's Hebei Province, Nov. 16, 2018. (Xinhua/Liu Peiran)

　　Aerial photo taken on Nov. 16, 2018 shows the winter scenery of Yuxi park in Shijiazhuang, capital of north China's Hebei Province. (Xinhua/Liu Peiran)