introductory

US /ˌɪn.trəˈdʌk.tər.i/

UK /ˌɪn.trəˈdʌk.tər.i/

1.

介紹性的

serving as an introduction to a subject or topic; basic or preliminary.

:

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a two-day introductory course

:

opening initial starting commencing first earliest prefatory preliminary precursory lead-in precursive prodromal preambular prelusive elementary basic rudimentary fundamental preparatory primary rudimental

:

final advanced