名词
中文翻译：排水
同义词：
['drain', 'draining', 'drainage例句：1. The city has a large sewer system to handle the drainage of its streets.（这个城市有一个大型的下水道系统来处理街道的排水。）']
例句：
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1. The city has a large sewer system to handle the drainage of its streets.
这个城市有一个大型的下水道系统来处理街道的排水。
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2. The construction crew is working on the drainage project for the new highway.
施工队正在为新高速公路的排水项目工作。
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3. The rainwater is being collected and then directed into the main drainage system.
雨水被收集起来，然后被引导到主要的排水系统中。