/pʌmp ||; pʌmp/verb1 [T] to force a gas or liquid to go in a particular direction 泵入，泵出（气体或液体）: Your heart pumps blood around your body. 心脏把血液压送到身体各部份去。
2 [I] (used about a liquid) to flow in a particular direction as if forced by a pump （指液体）似有泵压送那样流动: Blood was pumping out of the wound. 血从伤口涌出来。
3 [I,T] to be moved or to move sth very quickly up and down or in and out （使）上下、里外摇动或晃动: He pumped his arms up and down to keep warm. 他上下挥动两只胳膊取暖。
pump sth into sth/sb to put a lot of sth into sth/sb 大量投入，注入，输入:
He pumped all his savings into the business. 他把自己的积蓄都投入了这项生意。 pump sth up to fill sth with air, for example by using a pump 用泵等给某物充气:
to pump up a car tyre 给汽车轮胎充气