当我们为自己的汽车购买几加仑汽油时，我们付的不仅仅是汽油的价钱，而且还包括了一部分不断在进行着的勘探费用。

When we buy a few gallons of petrol for our cars, we pay not only the cost of the petrol, but also part of the cost of the search that is always going on.

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一些官员呼吁汽车制造商转型生产更省油和更先进的车型，包括汽油电动混合动力车和全电动汽车。

Several officials called for car-makers to shift their focus toward producing more fuel-efficient and more advanced models, including petrol-electric hybrids and all-electric cars.

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