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来源：雅诚德英语网
In part, this is a consequence of the falling cost of flying: ticket prices have dropped by 60%, in real terms, over the past 40 years.
从某种意义上说，这是乘坐飞机费用下降的结果：事实上，过去40年中，机票已经降价60%。
In part, this is a consequence of the falling cost of flying: ticket prices have dropped by 60%, in real terms, over the past 40 years.
从某种意义上说，这是乘坐飞机费用下降的结果：事实上，过去40年中，机票已经降价60%。