名词
中文翻译：沼气
同义词：
['stagnation', 'stagnant', 'swamp gas']
例句：
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1.The old house had a fireplace that was filled with firedamp.
那所老房子有一个充满沼气的壁炉。
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2. The farmers were trying to get rid of the firedamp in their fields.
农民们试图清除他们田地里的沼气。
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3.The firefighters were using a hose to suck up the firedamp from the basement.
消防员正在用软管从地下室吸出沼气。