Fans of electric cars say they are clean, quiet, and economical.

电动车爱好者说电动车无污染，无噪音，而且经济。

《柯林斯英汉双解大词典》

And so efficient and economical was this new system that he cut the price of his cars in half, to '260, putting them within reach of all those who, up until that time, could not afford them.

这一新的系统如此有效而且经济合算以致他将自己生产出来的汽车削价一半，降至每辆260美元，使那些在此之前一直买不起汽车的人都有能力买了。

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Fans of electric cars say they are clean, quiet and economical.

电动汽车迷们说，电动车清洁、无噪音而且经济。

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Leading US car firms have all been knocked by an over-reliance on thirsty pick-ups and SUVs, at a time when more American drivers are switching to smaller more economical cars.

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But the French and Italians, who specialise in producing economical cars, say they are quite capable of complying with the new rules without any help from the taxpayer and do not see why the Germans should benefit from their own profligacy.

ECONOMIST: The car industry

It has won a lot of market share in the past couple of years, thanks to its bestselling Accord sedan and its economical small cars.

ECONOMIST: The car industry