Apart from oxygen, there are some other gases in the air.

除了氧气，还有一些其他气体的空气。

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Inside a fire, oxygen molecules break bigger molecules apart into carbon dioxide and water vapor. All the heat and light of a fire comes from big, carbon-based molecules combining with oxygen.

在火中，氧分子将更大的分子氧化成二氧化碳和水蒸汽，火中的所有光和热都来自于含碳的大分子同氧气的结合。

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One plus is that, apart from the possibly dirty business of generating it, the gas is the cleanest fuel on the planet, combining with oxygen to create H2O, pure water vapor.

FORBES: Magazine Article