mid-15c., "marsh, morass" (from mid-13c. in place names), from Middle Dutch somp or Middle Low German sump, from Proto-Germanic *sumpaz, from PIE *swombho- "spongy." Meaning "pit to collect water" is first found 1650s. Sump-pump (1884) originally was in mining.
实用例句
1. An attempt was then made to dive the sump.
之后曾尝试潜入污水坑。
来自柯林斯例句
2. The lower portion of the disc is submerged within an oil sump.
圆盘下部浸在油池中.
来自辞典例句
3. The damaged sump spouted dirty oil.
受损的油槽里喷出了污浊的原油.
来自辞典例句
4. The acid waste waters are discharged into a sump or the sewerage system.
酸性废水被送往销毁池或阴沟系统.
来自辞典例句
5. Objective To sump up and extend COX regression model with categorical variables.
