A volunteer from Macao teaches a child how to use camera at Wuying, a Miao village under joint administration of Rongshui County, south China's Guangxi Zhuang Autonomous Region, and Congjiang County, southwest China's Guizhou Province, Aug. 11, 2019. More than 30 student volunteers from south China's Macao offered a week-long teaching service for children in this remote village. Volunteers prepared various classes including painting, acting, science and PE to enrich local children's summer vacation and broaden their horizon. (Xinhua/Huang Xiaobang)