n.排水，放水，排水系统

They must dig a drainage ditch to run off the water.
他们得挖一条排水渠把水排掉。
This drainage system has been aged.
这套排水系统已经老化了。
The poor drainage in the area leads to frequent flooding during the rainy season.
这个地区的排水不畅导致雨季时经常发生洪水。
After the heavy rain, the gardener checked the drainage system to ensure there was no waterlogging.
大雨过后，园丁检查了排水系统以确保没有积水。
Proper soil drainage is crucial for the healthy growth of most plants.
适当的土壤排水对大多数植物的健康生长至关重要。
The city council approved plans for improving street drainage to alleviate traffic congestion caused by puddles.
市议会批准了改善街道排水的计划，以缓解由水坑造成的交通拥堵。
The surgeon recommended installing a drain to promote fluid drainage from the surgical site.
外科医生建议安装引流管以促进手术部位的液体排出。
Poor yard drainage can result in foundation damage to your home if not addressed promptly.
如果不及时处理，庭院排水不良可能导致房屋地基受损。
The new housing development incorporates state-of-the-art stormwater drainage systems to minimize environmental impact.
新建的住宅区采用了先进的雨水排水系统，以尽量减少对环境的影响。
The farmer installed a French drain along the side of his field to improve groundwater drainage.
农民沿着田地一侧安装了一条法国排水沟，以改善地下水的排放。
The engineer suggested elevating the flower bed slightly for better surface drainage.
工程师建议将花坛稍微抬高，以便更好地进行地表排水。
The old building's faulty plumbing and inadequate drainage were major factors in its renovation plan.
这栋旧建筑的管道故障和排水不足是其翻新计划中的主要考虑因素。