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1. The car has a high fuel efficiency, which makes it ideal for long-distance travel.
这辆车的燃油效率高，非常适合长途旅行。
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2. To improve fuel efficiency, the manufacturer has introduced a new engine design.
为了提高燃油效率，制造商推出了新的发动机设计。
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3. Fuel efficiency is an important factor to consider when choosing a car.
燃油效率是选择汽车时需要考虑的重要因素。