Aerial photo taken on June 22, 2019 shows horses running at the Hequ horse ranch in Maqu County of Gannan Tibetan Autonomous Prefecture, northwest China's Gansu Province. (Xinhua/Ma Ning)

Aerial photo taken on May 19, 2019 shows the scenery of the Shanghu scenic area in Changshu City, east China's Jiangsu Province. (Xinhua/Ji Chunpeng)

Aerial photo taken on May 29, 2019 shows a harvester working at a wheat field in Daluli Village of Wuyang County, central China's Henan Province. (Xinhua/Li An)

Aerial photo taken on June 23, 2019 shows a part of Xiabandi reservoir on the Pamir Plateau in northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Hu Huhu)

Aerial view of pupils of Yingpan Ethnic Primary School practicing Munao Dancing during a break in Xishan Township of Mangshi City, Dehong Dai and Jingpo Autonomous Prefecture, southwest China's Yunnan Province, June 21, 2019. (Xinhua/Hu Chao)

Aerial photo taken on July 17, 2019 shows lotus flowers in Nianjia Lake in Changsha, central China's Hunan Province. (Xinhua/Chen Zeguo)

Aerial photo taken on May 18, 2019 shows the scenery of the Ra'og Lake in Qamdo, southwest China's Tibet Autonomous Region. (Xinhua/Li Xin)

Aerial photo taken on July 17, 2019 shows cole flowers in Minle County of Zhangye City, northwest China's Gansu Province. (Xinhua/Fan Peishen)

Aerial photo taken on June 28, 2019 shows milu deers, also known as Pere David's deers, gathering around a pond in Dafeng Milu National Nature Reserve in east China's Jiangsu Province. (Xinhua/Li Xiang)