drainage
noun /ˈdreɪnɪdʒ/
/ˈdreɪnɪdʒ/
[uncountable]- the process by which water or liquid waste is drained from an area
排水;放水 - a drainage system/channel/ditch
排水系统/渠/沟 - The area has good natural drainage.
这个地区有良好的天然排水系统。
- a drainage system/channel/ditch
- a system of drains
排水系统