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单词 lever
释义

lever

noun
/ˈliːvə(r)/
/ˈlevər/
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  1. a handle used to operate a vehicle or a machine
    • Pull the lever towards you to adjust the speed.
    see also gear lever
    Extra Examples
    • He threw a lever and the engines roared to life.
    • Set all three levers to the 0 position.
    • The machine is operated by means of a lever.
    • The machine will stop immediately once the lever is released.
    • To release the brake, pull the lever towards you.
    • When the lever is operated, the machine sews backwards.
    Topics Engineeringc1
    Oxford Collocations Dictionaryadjective
    • brake
    • control
    • gear
    verb + lever
    • move
    • press
    • pull
    preposition
    • by a lever
    • by means of a lever
    phrases
    • the position of the lever
    See full entry
  2. a long piece of wood, metal, etc. used for lifting or opening something by somebody placing one end of it under an object and pushing down on the other end
    • We had to use a lever to prise open the window.
    • Use a tyre lever to get the tyre off.
  3. lever (for/against something) an action that is used to put pressure on somebody to do something they do not want to do
    • The threat of sanctions is our most powerful lever for peace.
    Extra Examples
    • If this allegation is true, it will give us a useful lever against him.
    • This could serve as a powerful lever for peace.
    Oxford Collocations Dictionaryadjective
    • powerful
    • useful
    verb + lever
    • act as
    • be
    • give somebody
    preposition
    • lever against
    • lever for
    See full entry
  4. Word OriginMiddle English: from Old French levier, leveor, from lever ‘to lift’.

lever

verb
/ˈliːvə(r)/
/ˈlevər/
Verb Forms
present simple I / you / we / they lever
/ˈliːvə(r)/
/ˈlevər/
he / she / it levers
/ˈliːvəz/
/ˈlevərz/
past simple levered
/ˈliːvəd/
/ˈlevərd/
past participle levered
/ˈliːvəd/
/ˈlevərd/
-ing form levering
/ˈliːvərɪŋ/
/ˈlevərɪŋ/
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  1. to move something with a lever synonym prise
    • lever something + adv./prep. I levered the lid off the pot with a knife.
    • The intruders had levered off the bolts.
    • lever something + adj. They managed to lever the door open.
    Word OriginMiddle English: from Old French levier, leveor, from lever ‘to lift’.
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更新时间:2024/11/15 12:01:45