China is poised to overtake the United States as the world's biggest air travel market by 2022 -- and it's little wonder the country's airport construction craze shows no signs of abating.
원문출처 : https://www.cnn.com/travel/article/beijing-daxing-international-china/index.html
원문출처 : https://www.cnn.com/travel/article/beijing-daxing-international-china/index.html