名词短语
中文翻译：地下工作
同义词：
['subterranean work', 'underground labor例句：1. The tunnel was built to facilitate underground working.（这个隧道是为了便于地下作业而建造的。）']
例句：
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1. The tunnel was built to facilitate underground working.
这个隧道是为了便于地下作业而建造的。
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2.The construction crew is working on the underground workings of the new subway station.
施工队正在为新地铁站的地下部分进行作业。
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3. The underground workings are essential for maintaining the stability of the city's infrastructure.
地下工程对于维护城市基础设施的稳定性至关重要。