The world\\'s top 10 busiest airports for passenger traffic in 2020:Guangzhou, China (CAN)Atlanta, U.S. (ATL)Chengdu, China (CTU)Dallas/ Fort Worth, U.S. (DFW)Shenzhen, China (SZX)Beijing, China (PEK)Denver, U.S. (DEN)Kunming, China (KMG)Shanghai, China (SHA)Xi\\'an, China (XIY)