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单词 pump
释义

pump1/pump/ noun

a device that raises, transfers, or compresses fluids or that reduces the density of gases, esp by suction or pressure or both

a mechanism for transporting atoms, ions, or molecules across cell membranes

the heart

an act or the process of pumping

[Middle English pumpe, pompe, from early Low German pumpe or early Dutch pompe, prob from Spanish bomba, of imitative origin]

pump2verb trans

to move (air, water, etc) with a pump

to raise (water, etc) with a pump

(often + out) to draw a gas or liquid out of (a container, etc) with a pump

(usu + up) to inflate (a tyre, etc) by means of a pump or bellows

to supply (an organ, etc) with air by means of a pump or bellows

to give or inject (something) in large quantities or with force or enthusiasm

Their solution was to pump money into the economy

She tried desperately to pump new life into the class

to fire (bullets) repeatedly into somebody or something

informal to question (somebody) persistently and exhaustively

They pumped her for information but she was giving nothing away

to move (something) rapidly up and down, as if working a pump handle

She pumped his hand warmly

to transport (ions, etc) across a cell membrane by the expenditure of energy

verb intrans

to work a pump; to raise or move a liquid or gas with a pump

to move in a manner that resembles the action of a pump handle

to spurt out intermittently

pump iron

informal to exercise using weights


pump3noun

a flat shoe without fastenings that grips the foot chiefly at the toe and heel

chiefly N Eng a plimsoll

[origin unknown]
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更新时间:2024/12/22 18:09:12