Performers play the erhu, a two-stringed, fiddle-like traditional Chinese musical instrument, at a celebration of "Sanyuesan" festival in Wangmo County, southwest China's Guizhou Province, April 18, 2018. People of China's Bouyei ethnic group in Guizhou have a tradition to celebrate the Sanyuesan Festival on the third day of the third lunar month. (Xinhua/Yang Wenbin)