令航空公司最头疼的问题是航空燃料价格的上涨。
The airline's biggest headache is the increase in the price of aviation fuel.
据航空公司监测显示，美国7家大型客运航空公司机队的平均机龄约为14岁。
The average age of the fleet of the seven large U.S. passenger airlines is about 14 years old according to the airline monitor.
罢工给全国最大航空公司带来的影响使得较小的航空公司轻易捡到便宜。
The strike affecting the country's largest airline is producing easy pickings for smaller companies.
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