名词
中文翻译：氧气
同义词：
['oxygen', 'oxygen gas']
例句：
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1.Oxygen is essential for life onEarth.
氧气对地球上的生命至关重要。
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2. The lungs need a certain amount of oxygen tofunction properly.
肺部需要一定量的氧气才能正常运作。
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3. The scientist studied the effects ofoxygen on the human body.
这位科学家研究了氧气对人类身体的影响。