Laborers work at the construction site of the Terminal 2 of Chengdu Tianfu International Airport in Jianyang, about 50 kilometers from downtown Chengdu, southwest China's Sichuan Province, Aug. 28, 2019. The main structure of Terminal 2 of Chengdu Tianfu International Airport was capped on Wednesday. Chengdu Tianfu International Airport is expected to put into operation in 2021. (Xinhua/Jiang Hongjing)