双语例句原声例句
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上次我们讨论了光合作用，即植物利用光将二氧化碳和水转化为食物的过程。
Last time we talked about photosynthesis, the process by which plants use light to convert carbon dioxide and water into food.
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光合作用把二氧化碳和水转化成植物生长所需物质。
Photosynthesis creates plant matter out of carbon dioxide and water.
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当碳氢化合物燃烧时，该键被破坏以生成二氧化碳和水。
When a hydrocarbon is burned, these bonds break apart in order to form carbon dioxide and water.
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Methane, there are certainly some solid bonds there, but breaking those to form CO2 and water, well it's worth it, right, energetically.
酒精中的确含有很强的化学键，但是打断这些化学键然后生成二氧化碳和水，从能量上来看是值得的。
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You burn methane, and it combines with oxygen to form water, to form CO2.
燃烧酒精，酒精分子和氧气结合形成水和二氧化碳。
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