名词
中文翻译：地下火
同义词：
['subterranean fire', 'underground flame']
例句：
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1.The underground fire was so intense that it could be seen from the surface.
地下火非常强烈，从地表就能看见。
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2.The firefighters were trying to contain the underground fire before it spread.
消防员试图在火势蔓延前控制地下火。
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3.The underground fire was a result of an old mine shaft that had not been properly sealed.
地下火是由于一个未密封的旧矿井引起的。