There were moments in the spring and early summer when US airlines saw a chance for domestic leisure air traffic to recover to 2019 levels by the end of this year — and for a significant pickup in both business and international travel.
원문출처 : https://www.cnn.com/2021/09/24/perspectives/airline-recovery-domestic-international-business-travel/index.html
원문출처 : https://www.cnn.com/2021/09/24/perspectives/airline-recovery-domestic-international-business-travel/index.html