短语
中文翻译：在火上
同义词：
['in danger', 'in peril', 'at risk']
例句：
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1. He was on the fire when the fire alarm went off.
警报响起时，他正处在危险之中。
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2. The hikers were on the fire after a sudden snowstorm.
暴风雪过后，徒步旅行者陷入了困境。
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3. She was on the fire trying to save her cat from the fire.
她试图从火中救出她的猫。