Use premium fuel: If it is not possible to change the type of fuel your car can run on to bio, purchase the more expensive but environmentally friendly premium petrols.
选用质优价高的燃料：要是让你的汽车改用生物油不可行，就购买贵一点但是有利于环境的质优价高的燃料。
Some environmentally-friendly cars are really expensive.
一些环保汽车十分贵。
That makes traditional lighting expensive and environmentally hazardous.
这就使传统的照明方式昂贵而且对环境有害。
Well, I do prefer the lower emission cars as long as it doesn't cost much. Some environmentally-friendly cars are really expensive.
额，我更喜欢低排放量的汽车，因为它花费少。一些环保汽车十分贵。
It's the slowest, most environmentally destructive and most expensive option.
这是最慢，最破坏环境性和最昂贵的选择。
It's the slowest, most environmentally destructive and most expensive option.
这是最慢，最破坏环境性和最昂贵的选择。
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