Workers work at the construction site of the Er'tang Double-track Bridge for high-speed railway in south China's Guizhou province, Feb. 25, 2020 (photo taken by drone).The Guangxi section of the Guiyang-Nanning high-speed railway project (except the section in Du'an region), while doing a good job in epidemic prevention and control, officially resumed construction on February 24.More than 2,000 builders resumed construction in an orderly manner as required.