维护得好的话，现代飞机可以安全服役大约30年，但是老飞机不可避免地将会比最新款的飞机油耗更没效率。
If well maintained, modern jets have a safe working life of some 30 years, but older planes will inevitably be less fuel-efficient than the latest models.
从飞机油箱里倒出的几百加仑燃油在我眼前的舷窗外飞流直下，没有比这种景象更能让人清醒的了。
No sight has ever been so sobering as that fuel, hundreds of gallons of it, streaming past my window out of the plane's tanks.
从飞机油箱里倒出的成百上千加仑的汽油就从舷窗外飞流直下，没有什么比这种景象更能让人感到事态的严重。
No sight has ever been so sobering as that fuel, hundreds of gallons of it, streaming past my window out of the plane's tanks.
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