People of Miao ethnic group are seen during a celebration of "San Yue San" festival in Jianhe County in Qiandongnan Miao and Dong Autonomous Prefecture, southwest China's Guizhou Province, April 7, 2019. "San Yue San", or the third day of the third month in the Chinese Lunar Calendar, falls on April 7 this year. (Xinhua/Yang Wenbin)