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    material

    US /məˈtɪriəl/

    UK /məˈtɪəriəl/

    • Noun (Countable/Uncountable)
    • Cloth; fabric
    • Supplies or data needed to do a certain thing
    • Adjective
    • Relevant; (of evidence) important or significant
    • Belonging to the world of physical things
    demonstrate

    US /ˈdɛmənˌstret/

    UK /'demənstreɪt/

    • Verb (Transitive/Intransitive)
    • To display a feeling or ability openly
    • To protest about something often as a group
    A2TOEIC
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    improve

    US /ɪmˈpruv/

    UK /ɪm'pru:v/

    • Verb (Transitive/Intransitive)
    • To make, or become, something better
    A1TOEIC
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    tricky

    US /ˈtrɪki/

    UK /'trɪkɪ/

    • Adjective
    • Difficult, so needing skill to do or deal with
    • Likely to use tricks; dishonest or deceptive
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