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    Video vocabulary

    challenge

    US /ˈtʃæləndʒ/

    UK /'tʃælɪndʒ/

    • Noun (Countable/Uncountable)
    • An activity you wish to try that may be hard to do
    • Act of formally inviting someone to compete
    • Transitive Verb
    • To formally invite someone to compete at something
    • To question the correctness of something
    environment

    US /ɛnˈvaɪrənmənt, -ˈvaɪən-/

    UK /ɪn'vaɪrənmənt/

    • Noun (Countable/Uncountable)
    • Natural world in which plants and animals live
    • The entire surrounding conditions of something
    A1TOEIC
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    industry

    US /ˈɪndəstri/

    UK /'ɪndəstrɪ/

    • Uncountable Noun
    • Hard work; being busy working
    • Factories or businesses that make certain products
    A1TOEIC
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    efficient

    US /ɪˈfɪʃənt/

    UK /ɪˈfɪʃnt/

    • Adjective
    • Able to produce results without waste
    • Capable of producing desired results with little or no waste (of time, energy, or other resources).
    A2TOEIC
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    energy point vocabulary