Photo taken with a mobile phone shows a woman taking selfie with sunflowers at Beijing Olympic Forest Park in Beijing, capital of China, July 14, 2019. (Photo: Xinhua)

 

Photo taken with a mobile phone shows people viewing sunflowers at Beijing Olympic Forest Park in Beijing, capital of China, July 14, 2019.(Photo: Xinhua)

Photo taken with a mobile phone shows sunflowers at Beijing Olympic Forest Park in Beijing, capital of China, July 14, 2019. (Photo: Xinhua)

Photo taken with a mobile phone shows people viewing sunflowers at Beijing Olympic Forest Park in Beijing, capital of China, July 14, 2019. (Photo: Xinhua)

Photo taken with a mobile phone shows people taking photos with sunflowers at Beijing Olympic Forest Park in Beijing, capital of China, July 14, 2019. (Photo: Xinhua)

Photo taken with a mobile phone shows people viewing sunflowers at Beijing Olympic Forest Park in Beijing, capital of China, July 14, 2019. (Photo: Xinhua)

Photo taken with a mobile phone shows people viewing sunflowers at Beijing Olympic Forest Park in Beijing, capital of China, July 14, 2019. (Photo: Xinhua)

Photo taken with a mobile phone shows people taking photos of sunflowers at Beijing Olympic Forest Park in Beijing, capital of China, July 14, 2019. (Photo: Xinhua)

Photo taken with a mobile phone shows people walking at Beijing Fun in Beijing, capital of China, July 13, 2019. (Photo: Xinhua)

Photo taken with a mobile phone shows children playing at Beijing Fun in Beijing, capital of China, July 13, 2019. (Photo: Xinhua)

Photo taken with a mobile phone shows people walking at Beijing Fun in Beijing, capital of China, July 13, 2019. (Photo: Xinhua)

Photo taken with a mobile phone shows wild ducks frolicking in a lake in Yuanmingyuan, or the Old Summer Palace, in Beijing, capital of China, on July 14, 2019. (Photo: Xinhua)

Photo taken with a mobile phone shows a black swan standing by a lake in Yuanmingyuan, or the Old Summer Palace, in Beijing, capital of China, on July 14, 2019. (Photo: Xinhua)

Photo taken with a mobile phone shows wild ducks swimming in a lake in Yuanmingyuan, or the Old Summer Palace, in Beijing, capital of China, on July 14, 2019. (Photo: Xinhua)