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单词 concentrate
释义

concentrate

verb
 OPAL S
/ˈkɒnsntreɪt/
/ˈkɑːnsntreɪt/
Verb Forms
present simple I / you / we / they concentrate
/ˈkɒnsntreɪt/
/ˈkɑːnsntreɪt/
he / she / it concentrates
/ˈkɒnsntreɪts/
/ˈkɑːnsntreɪts/
past simple concentrated
/ˈkɒnsntreɪtɪd/
/ˈkɑːnsntreɪtɪd/
past participle concentrated
/ˈkɒnsntreɪtɪd/
/ˈkɑːnsntreɪtɪd/
-ing form concentrating
/ˈkɒnsntreɪtɪŋ/
/ˈkɑːnsntreɪtɪŋ/
Phrasal Verbs
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  1.  
    [intransitive, transitive] to give all your attention to something and not think about anything else
    • I can't concentrate with all that noise going on.
    • concentrate on something I struggled to concentrate on my job because I was worried about my son.
    • concentrate on doing something She tried to concentrate on reading her book but couldn't.
    • concentrate something Nothing concentrates the mind better than the knowledge that you could die tomorrow (= it makes you think very clearly).
    • concentrate something on something After 1926 she concentrated her energies on her medical practice.
    • concentrate something on doing something I decided to concentrate all my efforts on finding somewhere to live.
    Extra Examples
    • I tried to work but I found I couldn't concentrate.
    • I was tired and couldn't concentrate properly.
    • She was sitting at her desk concentrating hard.
    • She tried to concentrate, but her thoughts kept drifting back to the day before.
    • We were told to concentrate on a black dot in the middle of the screen.
    • We're concentrating even harder on giving quality service this year.
    Oxford Collocations Dictionaryadverb
    • hard
    • intensely
    • intently
    verb + concentrate
    • be unable to
    • cannot
    • be difficult to
    preposition
    • on
    See full entry
  2. [transitive] concentrate something + adv./prep. to bring something together in one place
    • Power is largely concentrated in the hands of a small elite.
    • We need to concentrate resources on the most run-down areas.
    • Fighting was concentrated around the towns to the north.
    • Never concentrate the heat in one place for too long.
    Extra Examples
    • These jobs are disproportionately concentrated in the service sector.
    • The immigrant community is strongly concentrated geographically.
    • Most of the country's industry is concentrated in the north.
  3. [transitive] concentrate something (specialist) to increase the strength of a substance by reducing its volume, for example by boiling it synonym reduce
  4. Word Originmid 17th cent. (in the sense ‘bring towards a centre’): Latinized form of concentre, fromcon- ‘together’ + centrum ‘centre’ or from French concentrer ‘to concentrate’. Sense (1) dates from the early 20th cent.

concentrate

noun
/ˈkɒnsntreɪt/
/ˈkɑːnsntreɪt/
[countable, uncountable]
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  1. a substance that is made stronger because water or other substances have been removed
    • mineral concentrates found at the bottom of rivers
    • jams made with fruit juice concentrate
    Word Originmid 17th cent. (in the sense ‘bring towards a centre’): Latinized form of concentre, fromcon- ‘together’ + centrum ‘centre’ or from French concentrer ‘to concentrate’. Sense (1) dates from the early 20th cent.
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更新时间:2024/12/22 18:03:49