A plant must have oxygen in order to live.
为了存活植物必须有氧气。
A plant drinks in oxygen from the atmosphere.
植物从大气中吸取氧气。
Oxygen, carbon dioxide, and nitrogen are essential for animal and plant life.
氧、二氧化碳、氮是动植物生命所必需的。
Oxygen, carbon dioxide, and nitrogen are essential for animal and plant life.
氧、二氧化碳、氮是动植物生命所必需的。
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