Sump
01
集水坑, 污水池
a pit or reservoir typically found in the basement or lower level of a building that collects excess water or liquid, such as groundwater, rainwater, or wastewater
02
油槽, 油底壳
an oil reservoir in an internal combustion engine
03
污水池, 化粪池
a covered cistern; waste water and sewage flow into it
