名词中文翻译
中文翻译：下水道
同义词：
['drain', 'drainpipe', 'sewage pipe']
例句：
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1.The sewer system is the main source of water pollution in the city.
这个下水道系统是城市水污染的主要来源。
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2.The sewer was clogged with trash and debris.
下水道被垃圾和杂物堵塞了。
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3. The sewer system needs to be regularly cleaned to prevent contamination.
需要定期清理下水道系统以防止污染。