Workers walk in the construction site of Guiyang Longdongbao International Airport's T3 terminal in Guiyang, southwest China's Guizhou Province, Nov. 22, 2020. The main steel structure construction of the Guiyang Longdongbao International Airport's T3 terminal has been completed on Sunday. The terminal is expected to be put into operation in 2021. (Xinhua/Ou Dongqu)