◎ sump是什么意思 n. 污水坑, 水坑, 机油箱[化] 污水槽 n. an oil reservoir in an internal combustion enginen. a well or other hole in which water has collected sump的用法和例句： 1. That way, you got a sump for the water. 这样你就能挖出来一点地下水 2. Besid...
