Aerial photo taken on Feb. 26, 2020 shows the construction site of B3 section of Pearl River Delta Water Resources Allocation Project in Guangzhou, south China's Guangdong Province. Major construction projects in Guangdong-Hong Kong-Macao Greater Bay Area have resumed at different levels and areas, with multiple measures in prevention and control of the novel coronavirus disease (COVID-19) on the construction sites. (Xinhua/Liu Dawei)