下げ水すい溝こうげすいこうじ字FuriganaMeanings1noundrainage ditch; canalRefers to a constructed channel for carrying away wastewater or rainwater, often found along roads or in agricultural areas.道どう路ろの脇わきに下げ水すい溝こうがある。There is a drainage ditch along the side of the road.
