Because of this high fuel economy, the elites can run fast over the marathon distance without depleting their carbohydrate reserves.

由于能耗低，跑步精英不用耗尽糖原，即可快速跑完马拉松距离。

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The Fiesta shows that a small car can run quietly and smoothly, with nimble handling and high fuel economy, without becoming too expensive.

Jonathan Welsh 福特新推出的嘉年华小型车。 福特嘉年华告诉我们，小型车跑动起来之后也可以很安静很平稳，它操作便捷，非常省油，价格又不是很贵。

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It's the most advanced heavy-duty engine oil yet developed by Shell and provides high protection even at the low-viscosity levels required for optimal fuel economy.

这是最先进的重型发动机油尚未开发的壳牌公司，并提供高度保护，甚至在低粘度所需的水平最佳的燃油经济性。

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Carnival said it was also being affected by the weak European economy and high fuel prices.

BBC: Carnival profits fall as Concordia crash impact remains

When major carriers already plagued with high fuel prices and a slowing economy are trying to get thousands of flights in the air every day, a few inspection shortcuts are inevitable.

FORBES: Magazine Article

Thanks to stringent federal standards, average fuel economy reached an all-time high in 2012.

FORBES: Average Price of a New Car?