People are seen waiting at a bus stop in Beijing, capital of China, Nov. 21, 2020. Beijing witnessed a snowfall on Saturday. (Xinhua/Ren Chao)

A pedestrian walks in the snow in Chaoyang District of Beijing, capital of China, Nov. 21, 2020. Beijing witnessed a snowfall on Saturday. (Xinhua/Li Xin)

Snow lays on a flower in the suburb of Beijing, capital of China, Nov. 21, 2020. Beijing witnessed a snowfall on Saturday. (Xinhua/Liu Jie)

A pedestrian walks in the snow in Chaoyang District of Beijing, capital of China, Nov. 21, 2020. Beijing witnessed a snowfall on Saturday. (Xinhua/Li Xin)

Snow lays on a flower in the suburb of Beijing, capital of China, Nov. 21, 2020. Beijing witnessed a snowfall on Saturday. (Xinhua/Liu Jie)

Pedestrians walk in the snow at a residential area in Xicheng District of Beijing, capital of China, Nov. 21, 2020. Beijing witnessed a snowfall on Saturday. (Xinhua/Luo Xiaoguang)

Snow lays on a flower in the suburb of Beijing, capital of China, Nov. 21, 2020. Beijing witnessed a snowfall on Saturday. (Xinhua/Liu Jie)

Snow lays on a flower in the suburb of Beijing, capital of China, Nov. 21, 2020. Beijing witnessed a snowfall on Saturday. (Xinhua/Liu Jie)