名词
中文翻译：排水沟
同义词：
['drainage system', 'drainage pipe', 'sewer line例句：1. The construction crewhas been working on the counter drain forseveral days now.（施工队已经连续几天在处理下水道问题了。）2. The citygovernment is considering installing anew counter drain to improve waterquality.（市政府正在考虑安装一个新的下水道系统来改善水质。）3. The old house had aleaky counter drain that needed immediate repair.（这所老房子有一个漏水的下水道需要立即修理。）']
例句：
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1. The construction crewhas been working on the counter drain forseveral days now.
施工队已经连续几天在处理下水道问题了。
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2. The citygovernment is considering installing anew counter drain to improve waterquality.
市政府正在考虑安装一个新的下水道系统来改善水质。
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3. The old house had aleaky counter drain that needed immediate repair.
这所老房子有一个漏水的下水道需要立即修理。