名词
中文翻译：排水
同义词：
['drain', 'drain', 'discharge']
例句：
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1.The city is designed to be self-sufficient in water and drainage systems.
这个城市设计成自给自足的，在水和排水系统方面。
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2. The rainwater was used to divert the floodwaters from the river.
雨水被用来将河流中的洪水转移开。
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3. The construction of a new drainage system was essential for the project's success.
建设一个新的排水系统对于这个项目的成功至关重要。