The new standards require an average fuel economy of 35.5 miles per gallon by 2016, an increase of more than eight miles per gallon.
新标准要求到2016年平均燃油经济性达到35.5英里每加仑,增幅超过8英里每加仑。
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On May 19th he announced that he would impose tougher fuel-efficiency standards. Carmakers will have to produce vehicles that go eight miles farther on a gallon of petrol by 2016.