1
- a mechanical device using suction or pressure to raise or move liquids, compress gases, or force air into inflatable objects such as tyres泵：
a petrol pump.
汽油泵。
1.1
- in sing. an instance of moving something or being moved by or as if by such a machine泵送; 抽吸, 抽运：
the pump of blood to her heart.
泵进她心脏的血液。
1.2
- with modifier Physiology an active transport mechanism in living cells by which specific ions are moved through the cell membrane against a concentration gradient【生理】泵（指特定离子逆浓度梯度进行的跨膜主动运输机制）：
the bacterium's sodium pump.
细菌钠泵。
1.3
- US a pump-action shotgun〈美〉压动式猎枪。
1
- with obj. and adverbial of direction force (liquid, gas, etc.) to move in a specified direction by or as if by means of a pump（用泵或似用泵）抽运, 抽吸（液体、气体等）：
the blood is pumped around the body
血液被输送到全身
no obj. if we pump long enough, we should bring the level up.我们只要抽足够长的时间就能使水面上升。
1.1
- no obj., with adverbial of direction move in spurts as though driven by a pump（泵抽似的）喷出：
blood was pumping from a wound in his shoulder.
血正从他肩部的伤口喷出来。
1.2
- fill with something注入：
my veins had been pumped full of glucose.
我的静脉内已注满了葡萄糖。
1.3
- shoot (bullets) into a target将（子弹）射向目标。
1.4
pump something in/into
informal invest a large sum of money in (something)〈非正式〉在…上投入大量资金：he pumped all his savings into building the boat.
他把所有积蓄都用来造这艘小船了。
1.5
- with obj. informal try to elicit information from (someone) by persistent questioning〈非正式〉追问, 探问, 盘问（某人）：
she began to pump her friend for details.
她开始追问好友, 打听详细情况。
1.6
pump something out
produce or emit something in large quantities or amounts大量产出; 大量排放：carnival bands pumping out music.
大量演奏音乐的狂欢节乐队。
2
- with obj. move (something) vigorously up and down用力上下晃动：
we had to pump the handle like mad.
我们只好拼命地晃动把手。
2.1
- no obj. move vigorously up and down or to and fro剧烈地上下（或来回）移动：
that's superb running - look at his legs pumping.
他跑得真棒——看他两条腿翻飞的样子！
2.2
- apply and release (a brake pedal or lever) several times in quick succession, typically to prevent skidding（尤指为了防止打滑而）点踏（刹车板）, 点拉（操纵杆）。
短语
pump someone's hand
- shake a person's hand vigorously用力地摇动…的手。
pump iron
- informal exercise with weights〈非正式〉用哑铃锻炼。
词源
late Middle English (originally in nautical use)： related to Dutch pomp 'ship's pump' （earlier in the sense 'wooden or metal conduit'）, probably partly of imitative origin.
短语动词
pump something up
1
- inflate a tyre, balloon, etc.给（轮胎、气球等）充气。
1.1
- informal increase something〈非正式〉增加, 提高：
she needs to read and pump up her political grip.
她需要广泛阅读, 以提高政治水平。
1.2
- give inappropriate support and encouragement to给…不妥当的支持和鼓励：
we let them pump up our egos.
我们听任他们吹捧我们自己。
1.3
-
pump something up
informal turn up the volume of music〈非正式〉把音乐的音量调大。