Leaf和Volt都售价不菲，价格将是汽油动力车售价的两倍。
The Leaf and the Volt will be expensive, costing around twice as much as comparable petrol-engined cars.
马自达公司作为日本第二大汽车出口商正在研发一种高性能的汽油动力车，其每升油耗可行驶32公里(合20英里)。
Mazda Motor Corp., Japan's second-largest car exporter, is developing a high-performance gasoline-engine car that achieves 32 kilometers (20 miles) per liter.
像丰田普锐斯这样的汽油电动混合动力车比传统车型的行驶里程提高了20%。
Gasoline electric hybrid models like the Toyota Prius improve mileage by a further 20 percent over conventional models.
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