Photo taken on April 9, 2019 shows the snowy scenery at an apricot garden in Yanqing District in Beijing, capital of China. (Xinhua/Jia Deyong)

A train runs on the railway in Yanqing District in Beijing, capital of China, April 9, 2019. (Xinhua/Jia Deyong)

Photo taken on April 9, 2019 shows the snow-covered peach flowers at a tourist scenic spot in Mentougou District in Beijing, capital of China. (Xinhua/Hou Jiqing)

Photo taken on April 9, 2019 shows the snow-covered peach flowers at a tourist scenic spot in Mentougou District in Beijing, capital of China. (Xinhua/Hou Jiqing)

Photo taken on April 9, 2019 shows the snowy scenery of the Mutianyu Great Wall in Beijing, capital of China. (Xinhua/Bu Xiangdong)

Aerial photo taken on April 9, 2019 shows the snowy scenery of the Mutianyu Great Wall in Beijing, capital of China. (Xinhua/Bu Xiangdong)

Photo taken on April 9, 2019 shows the snowy scenery of the Mutianyu Great Wall in Beijing, capital of China. (Xinhua/Bu Xiangdong)

Photo taken on April 9, 2019 shows the snowy scenery of the Mutianyu Great Wall in Beijing, capital of China. (Xinhua/Bu Xiangdong)

Aerial photo taken on April 9, 2019 shows the snowy scenery of the Mutianyu Great Wall in Beijing, capital of China. (Xinhua/Bu Xiangdong)