名词
中文翻译：地下排水系统
同义词：
['subsurface drainage system', 'underground water system', 'subterranean drainage system']
例句：
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1. The city has implemented anew underground drainage system to improve the qualityof its water.
该市实施了一个新的地下排水系统，以改善其水质。
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2.The construction of this underground drainage system willsignificantly reduce the risk of flooding during heavyrainfall.
这个地下排水系统的建设将显著降低在大雨期间发生洪水的风险。
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3. Theunderground drainage system is designed to collect andtreat wastewater from the city'sstreets and alleys.
地下排水系统旨在收集和处理城市街道和小巷的废水。