People shop for the upcoming Spring Festival at a market in Shijiazhuang, north China's Hebei Province, Feb. 3, 2021. Life gradually returns to normal in Shijiazhuang, capital of north China's Hebei Province. (Photo by Liang Zidong/Xinhua)

People shop for the upcoming Spring Festival at a market in Shijiazhuang, north China's Hebei Province, Feb. 3, 2021. Life gradually returns to normal in Shijiazhuang, capital of north China's Hebei Province. (Photo by Liang Zidong/Xinhua)

People shop for the upcoming Spring Festival at a market in Shijiazhuang, north China's Hebei Province, Feb. 3, 2021. Life gradually returns to normal in Shijiazhuang, capital of north China's Hebei Province. (Photo by Liang Zidong/Xinhua)

People shop for the upcoming Spring Festival at a market in Shijiazhuang, north China's Hebei Province, Feb. 3, 2021. Life gradually returns to normal in Shijiazhuang, capital of north China's Hebei Province. (Photo by Liang Zidong/Xinhua)

People shop for the upcoming Spring Festival at a market in Shijiazhuang, north China's Hebei Province, Feb. 3, 2021. Life gradually returns to normal in Shijiazhuang, capital of north China's Hebei Province. (Photo by Liang Zidong/Xinhua)

People shop for the upcoming Spring Festival at a market in Shijiazhuang, north China's Hebei Province, Feb. 3, 2021. Life gradually returns to normal in Shijiazhuang, capital of north China's Hebei Province. (Photo by Liang Zidong/Xinhua)

People shop for the upcoming Spring Festival at a market in Shijiazhuang, north China's Hebei Province, Feb. 3, 2021. Life gradually returns to normal in Shijiazhuang, capital of north China's Hebei Province. (Photo by Liang Zidong/Xinhua)