[N-UNCOUNT 不可数名词]排水系统;排水;放水Drainage is the system or process by which water or other liquids are drained from a place.
Line the pots with pebbles to ensure good drainage...
在罐子里铺一层鹅卵石,以确保排水良好。
The drainage system has collapsed because of too much rain.
由于降雨过多,排水系统已经彻底瘫痪了。
Oxford
drain·age/ˈdreɪnɪdʒ; NAmEˈdreɪnɪdʒ/noun[uncountable ]1the process by which water or liquid waste is drainedfrom 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。2a system of drains排水系统drainagedrainagesdrain·age/ˈdreɪnɪdʒ; NAmEˈdreɪnɪdʒ/
the process or system by which water or waste liquid flows away: A handful of pebbles in the bottom of a flowerpot will help drainage. a plan to improve the town’s drainage system
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