时差N小时:只有在地球上才能燃烧?(上)
日期:2019-07-25 18:10

(单词翻译:单击)

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What is fire anyway?

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火究竟是什么?

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Well, fire is rapid oxidization. It's the energy released when oxygen atoms start combining with carbon and hydrogen atoms.

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火,即燃烧,是快速的氧化反应d7d!*-ehsipI@G。氧化反应是氧原子和碳原子或氢原子结合释放能量ZgCw,.Pi=Rr9l9[wE

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Exactly, so without oxygen in the air, nothing burns.

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没错,那么如果空气中没有氧气,就不会有燃烧X2MYRBe~YyPtq

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You mean there was a time before oxygen?

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你是说氧气还不存在的那个时代?

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By roughly a billion years ago, simple forms of plant life called "eukaryotes" were already busily converting carbon dioxide into oxygen gas, just like their descendants do today.

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大约十亿年前,和眼下的植物一样,地球上最原始的植物祖先“真核细胞”忙碌地将二氧化碳转变成氧气o+u(]*XIj@MjEPRjbc

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译文为可可英语翻译,未经授权请勿转载!

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