换句话说，你开车的时候，发动机在燃烧汽油的同时会释放出一定量的二氧化碳，这个量由耗油量和行驶里程决定。
In other words: When you drive a car, the engine burns fuel which creates a certain amount of CO2, depending on its fuel consumption and the driving distance.
如果没有手动注油泵的话，在冷天气下发动机很难开车。
It can be difficult to start in cold weather if you don't have an engine primer.
打个比方，开车，好车的排气管都多，要是有人恶作剧把排气管给堵上，这车发动机就坏了。
Analogy, a good car has more exhaust pipes; if the pipes are blocked mischievously, the car engine will break down easily.
打开车门，行李箱和发动机舱！
打开车门，行李箱和发动机舱！
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