Volunteers do water rocket launching experiment with children in Shouju Village of Rong'an County in Liuzhou, south China's Guangxi Zhuang Autonomous Region, July 13, 2017. More than 80 students from Guangxi University of Science and Technology came to Shouju Village recently for voluntary teaching of left-behind children, coaching them on cultural and scientific knowledge. (Xinhua/Huang Xiaobang)
