名词
中文翻译：地下工程
同义词：
['subterranean engineering', 'underwater engineering']
例句：
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1. The construction of this underground tunnel is expected to be completed within six months.
预计这座地下隧道的建设将在六个月内完成。
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2. This underground parking garage is designed to accommodate a large number of vehicles.
这个地下停车场设计用来容纳大量车辆。
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3.The construction of the underground railway system is crucial for improving transportation efficiency.
地下铁路系统的建设对于提高交通效率至关重要。