sump
英[s?mp]
美[s?mp]
- n. 水坑；污水坑；機油箱
- vi. 挖深（渠道，井筒等）
英英釋意
- 1. an oil reservoir in an internal combustion engine
- 2. a well or other hole in which water has collected
- 3. a covered cistern; waste water and sewage flow into it
