We inhale oxygen and exhale carbon dioxide.

我们吸入的是氧气，呼出的是二氧化碳。

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Humans along with other mammals and birds then inhale the oxygen and exhale carbon dioxide in the physical creating a symbiotic relationship where one supports the other in the continued existence.

然后人类与其它哺乳动物和鸟类在物质形体吸入氧气而呼出二氧化碳，在维持生存中创造了一个彼此支持的共生关系。

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Without gravity to help circulate air, the carbon dioxide you exhale has a tendency to form an invisible cloud around your head.

如果没有重力帮助空气循环，你呼出的二氧化碳会在你头顶周围形成一个看不见的云状物。

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In 2009, the EPA declared their intention to regulate carbon dioxide (we exhale this dangerous gas) as a pollutant.

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The emissions they seek to regulate are not dirty, sooty carbon, but carbon dioxide, that harmless gas that we exhale with every breadth.

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This is not Spitzer's first time taking on utilities, but it is the first time he is suing them for releasing carbon dioxide, which is the gas released with every human exhale.

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