to make water, air, gas, etc. flow in a particular direction by using a pump or sth that works like a pump 用泵（或泵样器官等）输送
~ (sth) (+ adv./prep.)
The engine is used for pumping water out of the mine.
这台发动机是用来从矿井中抽水的。
The heart pumps blood around the body.
心脏把血液输送到全身。
~ sth + adj.
The lake had been pumped dry.
湖水已被抽干