Cash for Clunkers was designed to boost the sagging sales of American automakers and take vehicles with low fuel economy off the road.

旧车换现金方案的目标，是要刺激销售萎靡不振的美国汽车市场，并汰换掉路上低燃料效能的车辆。

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This will save nearly 2 billion barrels of oil over the lifetime of the vehicles sold in the next five years and is equivalent to taking 58 million cars off the road for an entire year.

这将在未来5年内出售的汽车的生命周期内节省出近20亿桶石油，相当于让5800万辆汽车停驶整整一年。

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For example, the speedometer parts might be assembled into both sports cars and off-road vehicles.

例如，里程表部件可以组装到赛车和越野车中。

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Jim Dixon, chief executive of the park, said the off-road vehicles were causing damage to the landscape and that only a small section was being considered for closure.

BBC: Lord Hattersley joins Peak District access row

Another expensive option that is being actively canvassed is a scheme to subsidise the scrapping of old cars in order to get the most polluting vehicles off the road.

ECONOMIST: Fuel duties

Chinese officials last month implemented a drastic plan to combat Beijing's persistent pollution problems, taking half of the city's more than 3 million vehicles off the road, temporarily closing factories and chemical plants, and suspending all construction work.

CNN: Pollution, Internet, doping dominate Olympics lead-up