An excavator cleans silt in Yajiao Village of Waina Town in Wudu District, Longnan of northwest China's Gansu Province, Aug. 21, 2020. Recently, natural disasters triggered by heavy rain have affected Longnan city badly. Post-disaster reconstruction works started right after the floods receded to help life get back to normal at the flood-affected areas. (Xinhua/Du Zheyu)
