Two boys wash their hair at Nongyong Primary School in Bansheng Township of Dahua Yao Autonomous County, south China's Guangxi Zhuang Autonomous Region, May 10, 2019. Due to harsh environmental conditions such as the stony desertification and mountainous landform, Dahua County in Guangxi has long been a less developed area. In recent years, local government carried out many measures for the poverty alleviation work. The government helped local people build roads, repair houses and improve education. (Xinhua/Huang Xiaobang)