Airlines need to become more reliably profitable in order to replace kerosene-guzzling 20-year-old jets with new and more spacious fuel-efficient aircraft.
Airlines need to become more reliably profitable in order to replace kerosene-guzzling 20-year-old jets with new and more spacious fuel-efficient aircraft.
这些企业需要稳定的收入来源，以便采用新型、宽敞、节约燃料的机型代替服役20年、耗油量大的煤油喷气机。