Coasting is especially useful if you're driving on country highways and straight roads, where you don't need to floor the accelerator and feed fuel into your engine.

如果你行驶在乡村公路和笔直的道路上，滑行尤其有用，你不用把油门踩到底，也不用给引擎供油。

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He's getting creative with his wheat crop this spring to save on feed and fuel.

他将有创意地利用今年春季的小麦作物，以节约饲料和燃料。

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The trick is to keep very light pressure on the gas pedal, just enough to feed a steady amount of fuel to the engine.

技巧是在油门上轻施压力，仅够供给引擎稳定量的燃料。

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American farmers and ranchers are proud to grow the food, feed, fuel, and fiber that enhance our national security and prosperity, and remain steadfast stewards of the land they love.

WHITEHOUSE: The White House

"It's not our long-term solution because of the competition with feed, and fuel competition, but it is prompting us to put into place a refueling infrastructure that could be used with cellulosic ethanol, " made from other types of plant material such as timber waste or switch grass.

CNN: Ethanol: Is it friend or foe?

Our oceans help feed our Nation, fuel our economic engine, give mobility to our Armed Forces, and provide a place for rest and recreation.

WHITEHOUSE: Presidential Proclamation -- National Oceans Month, 2012