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    crucial

    US /ˈkruʃəl/

    UK /'kru:ʃl/

    • Adjective
    • Extremely important or necessary
    • Of great importance to the success of something.
    struggle

    US /ˈstrʌɡəl/

    UK /'strʌɡl/

    • Verb (Transitive/Intransitive)
    • To try very hard to do something difficult
    • To fight or struggle violently
    • Noun (Countable/Uncountable)
    • Strong efforts made to do something difficult
    • A difficult or challenging situation or task
    impact

    US /ˈɪmˌpækt/

    UK /'ɪmpækt/

    • Noun
    • A striking effect or result to hit with force
    • Act or force of one thing hitting something else
    • Verb (Transitive/Intransitive)
    • To hit or strike someone or something with force
    • To have a strong effect on someone or something.
    A2TOEIC
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    track

    US /træk/

    UK /træk/

    • Transitive Verb
    • To use marks to follow a wild animal
    • To move a certain way/follow a particular course
    • Noun
    • A circular course for running
    • Course or way someone takes, e.g. in education
    A2TOEIC
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