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    boost

    US /bust/

    UK /bu:st/

    • Transitive Verb
    • To increase something; to make something better
    • To push someone or something up from beneath them
    • Noun (Countable/Uncountable)
    • An increase in something
    B1TOEIC
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    expect

    US /ɪkˈspɛkt/

    UK /ɪk'spekt/

    • Verb (Transitive/Intransitive)
    • To believe something is probably going to happen
    • To anticipate or believe that something will happen or someone will arrive.
    A1TOEIC
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    lack

    US /læk/

    UK /læk/

    • Verb (Transitive/Intransitive)
    • To not have, or not have enough, of something
    • Uncountable Noun
    • The state of not having or not having enough of
    A2TOEIC
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    vaccine

    US /vækˈsin,ˈvækˌsin/

    UK /'væksi:n/

    • Noun (Countable/Uncountable)
    • Shot using weak disease cells to stop same disease
    • A preparation of weakened or killed microorganisms, or of antigenic proteins derived from them, used to induce protective immunity in animals.
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    energy point vocabulary