Photo taken with a mobile phone shows blossoming flowers at the Summer Palace in Beijing, capital of China, March 17, 2019. (Xinhua/Zhang Chuanqi)

Photo taken with a mobile phone shows spring scenery at the Summer Palace in Beijing, capital of China, March 17, 2019. (Xinhua/Zhang Chuanqi)

Photo taken with a mobile phone shows spring scenery at the Summer Palace in Beijing, capital of China, March 17, 2019. (Xinhua/Zhang Chuanqi)

Photo taken with a mobile phone shows blossoming flowers in Beijing, capital of China, March 18, 2019. (Xinhua/Li Bin)