During the Second World War, when a young group of pilots in the RAF were fighting for their lives in the air over England, they would often be hit by enemy fire.

在第二次世界大战中，当英国皇家空军在英格兰上空为自己的生命二战的时候，他们经常会被敌军的火力攻击到。

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But on the other hand, the use of over-fire air reduces the combustion efficiency of pulverized coal.

但另一方面，燃尽风的应用将导致煤粉燃烧效率下降。

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The early morning sun was a blinding ball of fire in the sky, and the hot air shimmered as it rose off the long queue of fuel trucks that snaked the curve and disappeared over the rise beyond.

清晨的太阳像个火球般在天空中闪耀，炽热的空气在蜿蜒曲折的油罐车队上空飘荡，那车队的尾巴消失在远方的山坡后面。

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Planes are flying over the scene, dropping water over the fire and still big plumes of smoke are hundreds of meters in the air ... tons of ambulances, firefighters.

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Monday's announcement by the board of Alitalia that it was accepting a bid by Air France-KLM provoked howls of outrage from politicians and union leaders over the fire sale price being offered, as well as the impact the sale would have on the economy of Milan, the Italian capital of business.

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That ideas should freely spread from one to another over the globe, for the moral and mutual instruction of man, and improvement of his condition, seems to have been peculiarly and benevolently designed by nature, when she made them, like fire, expansible over all space, without lessening their density in any point, and like the air in which we breathe, move, and have our physical being, incapable of confinement or exclusive appropriation.

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