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    Video vocabulary

    layer

    US /ˈleɚ/

    UK /ˈleiə/

    • Noun (Countable/Uncountable)
    • One of several sheets of a material or object
    • A covering of something spread over a surface.
    • Transitive Verb
    • To put things one on top of another
    B1TOEIC
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    interaction

    US /ˌɪntɚˈækʃən/

    UK /ˌɪntər'ækʃn/

    • Noun (Countable/Uncountable)
    • Process of people or things affecting each other
    • The activity of talking to other people, working together etc
    occur

    US /əˈkɚ/

    UK /əˈkɜ:(r)/

    • Intransitive Verb
    • To come to pass or to happen
    • To be found to exist; to be present.
    A2TOEIC
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    primary

    US /ˈpraɪˌmɛri, -məri/

    UK /'praɪmərɪ/

    • Adjective
    • Most important, most basic or essential
    • Happening first; earliest
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