额，我更喜欢低排放量的汽车，因为它花费少。
W: Well, I do prefer the lower emission cars as long as it doesn't cost much.
毕竟，汽车制造商只要能够研制出温室气体排放量低却不影响表现的轿车就不会在推广新车的时候遇到问题。
Carmakers, after all, see no problem with marketing new cars on the basis that they produce fewer greenhouse-gas emissions without compromising on performance.
即使氢气是由天然气生产出来的，汽车的碳排放量也比汽油混合型汽车低很多。
Even if the hydrogen is produced using natural gas, the emissions of the car are many times lower than those of a petrol-hybrid model.
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