名词
中文翻译：下水道隧道
同义词：
['drain tunnel', "sewer pipe例句：1. The construction of the sewer tunnel is crucial for the city's drainage system.（下水道隧道的建设对于城市的排水系统至关重要。）"]
例句：
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1. The construction of the sewer tunnel is crucial for the city's drainage system.
下水道隧道的建设对于城市的排水系统至关重要。
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2.The sewer tunnel has been under repair for several months now.
下水道隧道已经维修了几个月了。
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3. The sewer tunnel runs beneath the streets, connecting to the main sewage system.
下水道隧道位于街道下方，连接到主要的污水系统。