About 2.5 billion years ago, the newest fad in organisms was photosynthesis — the ability to to turn sunlight, carbon dioxide (CO2) and water into sugar.
大约25亿年前，生物界出现了光合作用——把光照、二氧化碳和水转化成糖的能力。
About 2.5 billion years ago, the newest fad in organisms was photosynthesis — the ability to to turn sunlight, carbon dioxide (CO2) and water into sugar.
大约25亿年前，生物界出现了光合作用——把光照、二氧化碳和水转化成糖的能力。
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