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    essential

    US /ɪˈsɛnʃəl/

    ・

    UK /ɪ'senʃl/

    • Adjective
    • Extremely or most important and necessary
    • Fundamental; basic.
    • Noun
    • A concentrated hydrophobic liquid containing volatile aroma compounds from plants.
    B1TOEIC
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    simultaneously

    US /saɪməlˈtenɪəslɪ/

    ・

    UK /ˌsɪməl'teɪnɪəslɪ/

    • Adverb
    • At the same time; all together
    B2
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    infrastructure

    US /ˈɪnfrəˌstrʌktʃɚ/

    ・

    UK /'ɪnfrəstrʌktʃə(r)/

    • Uncountable Noun
    • Basic necessary equipment for a country or region
    • The underlying framework or system of an organization.
    B1
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    demand

    US /dɪˈmænd/

    ・

    UK /dɪ'mɑ:nd/

    • Noun (Countable/Uncountable)
    • Desire customers have to buy product, service
    • A strong request for someone to do something
    • Transitive Verb
    • To strongly request someone to do something
    • To need something.
    A2TOEIC
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    energy point vocabulary