Dafaqu grand bridge of Renhuai-Zunyi expressway under construction in Guizhou

A worker operates at the construction site of the Dafaqu grand bridge of Renhuai-Zunyi expressway in southwest China's Guizhou Province, on April 21, 2021. The bridge, with designed length of 1,427 meters and width of 33 meters, is one of the key projects along the expressway. (Xinhua/Yang Wenbin)