The aviation industry is in crisis, there's a global push to cut carbon emissions, and many of us haven't stepped on a plane or hugged far-flung loved ones in more than a year.
원문출처 : https://www.cnn.com/travel/article/boom-supersonic-four-hours-100-bucks/index.html
원문출처 : https://www.cnn.com/travel/article/boom-supersonic-four-hours-100-bucks/index.html