A sanitation worker scatters snow-melting agent on a road in Beijing, capital of China, Jan. 20, 2022. (Xinhua/Li Xin)

Photo taken on Jan. 20, 2022 shows a snow scenery in Beijing, capital of China. (Xinhua/Li Xin)

Twin sisters play in snow in Beijing, capital of China, Jan. 20, 2022. (Xinhua/Li Xin)

Photo taken on Jan. 20, 2022 shows a snow scenery in Beijing, capital of China. (Xinhua/Li Xin)

Photo taken with a cellphone on Jan. 20, 2022 shows pedestrians walking amid snowfall on a street in Beijing, capital of China. (Xinhua/Luo Xiaoguang)

A girl runs in snow at the National Museum of China in Beijing, capital of China, Jan. 20, 2022. (Xinhua/Jin Liangkuai)

Photo taken with a cellphone on Jan. 20, 2022 shows a pedestrian walking amid snowfall on a street in Beijing, capital of China. (Xinhua/Luo Xiaoguang)

Photo taken on Jan. 20, 2022 shows a view of the Tian'anmen Square in Beijing, capital of China. (Xinhua/Jin Liangkuai)

Photo taken on Jan. 20, 2022 shows a view of the Tian'anmen Square in Beijing, capital of China. (Xinhua/Jin Liangkuai)

A staff member sweeps snow at the National Museum of China in Beijing, capital of China, Jan. 20, 2022. (Xinhua/Jin Liangkuai)

People take photos in front of decorative installations themed on 2022 Beijing Winter Olympics in Beijing, capital of China, Jan. 20, 2022. (Xinhua/Li Xin)

Photo taken with a cellphone on Jan. 20, 2022 shows pedestrians walking amid snowfall on a street in Beijing, capital of China. (Xinhua/Luo Xiaoguang)

Tourists enjoy the snow scenery of the Palace Museum in Beijing, capital of China, Jan. 20, 2022. (Xinhua/Xing Guangli)

Photo taken on Jan. 20, 2022 shows a bronze sculpture covered with snow in Beijing, capital of China. (Xinhua/Li Xin)