名词
中文翻译：火线
同义词：
['firing line', 'fire zone例句：1. The soldiers were ordered to clear the fire lines before they could advance.（士兵们被命令在敌人前进之前清除火线。）']
例句：
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1. The soldiers were ordered to clear the fire lines before they could advance.
士兵们被命令在敌人前进之前清除火线。
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2.The firefighters were working diligently to contain the fire lines.
消防员们正在努力地控制火线。
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3.The army had to move their fire lines to avoid a potential attack.
军队不得不移动他们的火线以避免潜在的攻击。