名词
中文翻译：Unknown
同义词：
['burning', 'combustion']
例句：
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1.The fire was caused by a piece of paper that caught on fire.
火灾是由一张纸引起的。
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2. The scientist conducted experiments to understand the combustion process.
科学家进行了实验，以了解燃烧过程。
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3. The combustion of fossil fuels is a major source of greenhouse gas emissions.
化石燃料的燃烧是温室气体排放的主要来源。