People perform dance during a culture and art festival in Dari County of Guoluo Tibetan Autonomous Prefecture, northwest China's Qinghai Province, Aug. 4, 2017. The cultural and art festival kicked off on Friday, with various activities enriching the summer life of local people.[Photo/Xinhua]

A singer sings a song during a culture and art festival in Dari County of Goluo Tibetan Autonomous Prefecture, northwest China's Qinghai Province, Aug. 4, 2017. The cultural and art festival kicked off on Friday, with various activities enriching the summer life of local people.[Photo/Xinhua]

People perform dance during a culture and art festival in Dari County of Guoluo Tibetan Autonomous Prefecture, northwest China's Qinghai Province, Aug. 4, 2017. The cultural and art festival kicked off on Friday, with various activities enriching the summer life of local people.[Photo/Xinhua]

People race cattle during a culture and art festival in Dari County of Goluo Tibetan Autonomous Prefecture, northwest China's Qinghai Province, Aug. 4, 2017. The cultural and art festival kicked off on Friday, with various activities enriching the summer life of local people. [Photo/Xinhua] 

People race cattle during a culture and art festival in Dari County of Goluo Tibetan Autonomous Prefecture, northwest China's Qinghai Province, Aug. 4,2017. The cultural and art festival kicked off on Friday, with various activities enriching the summer life of local people. [Photo/Xinhua] 

A singer sings a song during a culture and art festival in Dari County of Goluo Tibetan Autonomous Prefecture, northwest China's Qinghai Province, Aug. 4,2017. The cultural and art festival kicked off on Friday, withvarious activities enriching the summer life of local people.[Photo/Xinhua]