英语词汇“lever”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

A lever is a handle, sticking out at an angle, that allows you to operate a machine or close a door . When you pull the lever of a voting booth, you both cast your ballot and open the curtain.

All kinds of things — particularly machines — have levers. The word is also used to describe anything that you are able to use to move or influence someone else: think leverage. A headline in the New York Times said the government would use its contracts with private companies as a "wage lever," meaning the government would try to improve wages by giving work and money to companies that paid well and provided generous benefits. Levers get things done.

WORD FAMILY

lever: leverage, levered, levering, levers+/leverage: leveraged, leverages, leveraging

USAGE EXAMPLES

But even Fitzgerald would be flummoxed by Midwest voters pulling the lever for Obama twice and then Donald Trump last month.

MSNBC(Jan 02, 2017)

But while the hacking focused attention on one particularly stealthy, intrusive way of influencing other states, it is just one lever that the Kremlin pulls.

New York Times(Dec 30, 2016)

Replace doorknobs with lever handles that are easier to open.

New York Times(Dec 30, 2016)

1n a simple machine that gives a mechanical advantage when given a fulcrum

Hyper

machine, simple machine

a device for overcoming resistance at one point by applying force at some other point

2n a rigid bar pivoted about a fulcrum

Hypo|Hyper

compound lever

a pair of levers hinged at the fulcrum

crowbar, pry, pry bar, wrecking bar

a heavy iron lever with one end forged into a wedge

gun trigger, trigger

lever that activates the firing mechanism of a gun

hand throttle

a hand-operated lever that controls the throttle valve

key

a lever (as in a keyboard) that actuates a mechanism when depressed

cant dog, dog hook, peavey, peavy

a stout lever with a sharp spike; used for handling logs

foot lever, foot pedal, pedal, treadle

a lever that is operated with the foot

pinch bar

a lever with a pointed projection that serves as a fulcrum; used to roll heavy wheels

ripping bar

a steel lever with one end formed into a ripping chisel and the other a gooseneck with a claw for pulling nails

rocker arm, valve rocker

a lever pivoted at the center; used especially to push a valve down in an internal-combustion engine

spark lever

(on early automobiles) a lever mounted on the steering column and used to adjust the timing of the ignition

control stick, joystick, stick

a lever used by a pilot to control the ailerons and elevators of an airplane

tappet

a lever that is moved in order to tap something else

tiller

lever used to turn the rudder on a boat

tire iron, tire tool

hand tool consisting of a lever that is used to force the casing of a pneumatic tire onto a steel wheel

accelerator, accelerator pedal, gas, gas pedal, gun, throttle

a pedal that controls the throttle valve

backspace, backspace key, backspacer

the typewriter key used for back spacing

brake pedal

foot pedal that moves a piston in the master brake cylinder

cant hook

a peavey having a hook instead of a spike; used for handling logs

clutch, clutch pedal

a pedal or lever that engages or disengages a rotating shaft and a driving mechanism

command key, control key

(computer science) the key on a computer keyboard that is used (in combination with some other key) to type control characters

hair trigger

a gun trigger that responds with little pressure

jim crow

a crowbar fitted with a claw for pulling nails

jemmy, jimmy

a short crowbar

nutcracker

a compound lever used to crack nuts open

pair of pliers, pliers, plyers

a gripping hand tool with two hinged arms and (usually) serrated jaws

return, return key

the key on electric typewriters or computer keyboards that causes a carriage return and a line feed

pair of scissors, scissors

an edge tool having two crossed pivoting blades

shift, shift key

the key on the typewriter keyboard that shifts from lower-case letters to upper-case letters

soft pedal

a pedal on a piano that moves the action closer to the strings and so soften the sound

space bar

the bar-shaped typewriter key that introduces spaces when used

loud pedal, sustaining pedal

a pedal on a piano that lifts the dampers from the strings and so allows them to continue vibrating

tab, tab key

the key on a typewriter or a word processor that causes a tabulation

telegraph key

key consisting of a lever that sends a telegraph signal when it is depressed and the circuit is closed

bar

a rigid piece of metal or wood; usually used as a fastening or obstruction or weapon

3n a flat metal tumbler in a lever lock

Syn|Hyper

lever tumbler

tumbler

a movable obstruction in a lock that must be adjusted to a given position (as by a key) before the bolt can be thrown

4v to move or force, especially in an effort to get something open

Syn|Hyper

jimmy, prise, prize, pry

open, open up

cause to open or to become open

单词	lever
释义	lever (once / 561 pages) nv A lever is a handle, sticking out at an angle, that allows you to operate a machine or close a door . When you pull the lever of a voting booth, you both cast your ballot and open the curtain. All kinds of things — particularly machines — have levers. The word is also used to describe anything that you are able to use to move or influence someone else: think leverage. A headline in the New York Times said the government would use its contracts with private companies as a "wage lever," meaning the government would try to improve wages by giving work and money to companies that paid well and provided generous benefits. Levers get things done. WORD FAMILY lever: leverage, levered, levering, levers+/leverage: leveraged, leverages, leveraging USAGE EXAMPLES But even Fitzgerald would be flummoxed by Midwest voters pulling the lever for Obama twice and then Donald Trump last month. MSNBC(Jan 02, 2017) But while the hacking focused attention on one particularly stealthy, intrusive way of influencing other states, it is just one lever that the Kremlin pulls. New York Times(Dec 30, 2016) Replace doorknobs with lever handles that are easier to open. New York Times(Dec 30, 2016) 1n a simple machine that gives a mechanical advantage when given a fulcrum Hyper machine, simple machine a device for overcoming resistance at one point by applying force at some other point 2n a rigid bar pivoted about a fulcrum Hypo\|Hyper compound lever a pair of levers hinged at the fulcrum crowbar, pry, pry bar, wrecking bar a heavy iron lever with one end forged into a wedge gun trigger, trigger lever that activates the firing mechanism of a gun hand throttle a hand-operated lever that controls the throttle valve key a lever (as in a keyboard) that actuates a mechanism when depressed cant dog, dog hook, peavey, peavy a stout lever with a sharp spike; used for handling logs foot lever, foot pedal, pedal, treadle a lever that is operated with the foot pinch bar a lever with a pointed projection that serves as a fulcrum; used to roll heavy wheels ripping bar a steel lever with one end formed into a ripping chisel and the other a gooseneck with a claw for pulling nails rocker arm, valve rocker a lever pivoted at the center; used especially to push a valve down in an internal-combustion engine spark lever (on early automobiles) a lever mounted on the steering column and used to adjust the timing of the ignition control stick, joystick, stick a lever used by a pilot to control the ailerons and elevators of an airplane tappet a lever that is moved in order to tap something else tiller lever used to turn the rudder on a boat tire iron, tire tool hand tool consisting of a lever that is used to force the casing of a pneumatic tire onto a steel wheel accelerator, accelerator pedal, gas, gas pedal, gun, throttle a pedal that controls the throttle valve backspace, backspace key, backspacer the typewriter key used for back spacing brake pedal foot pedal that moves a piston in the master brake cylinder cant hook a peavey having a hook instead of a spike; used for handling logs clutch, clutch pedal a pedal or lever that engages or disengages a rotating shaft and a driving mechanism command key, control key (computer science) the key on a computer keyboard that is used (in combination with some other key) to type control characters hair trigger a gun trigger that responds with little pressure jim crow a crowbar fitted with a claw for pulling nails jemmy, jimmy a short crowbar nutcracker a compound lever used to crack nuts open pair of pliers, pliers, plyers a gripping hand tool with two hinged arms and (usually) serrated jaws return, return key the key on electric typewriters or computer keyboards that causes a carriage return and a line feed pair of scissors, scissors an edge tool having two crossed pivoting blades shift, shift key the key on the typewriter keyboard that shifts from lower-case letters to upper-case letters soft pedal a pedal on a piano that moves the action closer to the strings and so soften the sound space bar the bar-shaped typewriter key that introduces spaces when used loud pedal, sustaining pedal a pedal on a piano that lifts the dampers from the strings and so allows them to continue vibrating tab, tab key the key on a typewriter or a word processor that causes a tabulation telegraph key key consisting of a lever that sends a telegraph signal when it is depressed and the circuit is closed bar a rigid piece of metal or wood; usually used as a fastening or obstruction or weapon 3n a flat metal tumbler in a lever lock Syn\|Hyper lever tumbler tumbler a movable obstruction in a lock that must be adjusted to a given position (as by a key) before the bolt can be thrown 4v to move or force, especially in an effort to get something open Syn\|Hyper jimmy, prise, prize, pry open, open up cause to open or to become open
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