introductory

US /ˌɪn.trəˈdʌk.tər.i/

UK /ˌɪn.trəˈdʌk.tər.i/

1.

lời giới thiệu, lời tựa, mở đầu

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

:

•

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