exordium
exordium[ɪgˈzɔːdɪəm, ɛg-](pl. exordiums 或 exordia )- (formal)the beginning or introductory part, especially of a discourse or treatise
(正式)(尤指讲话或论文的)绪言;绪论
派生exordialadjective语源- late 16th cent.: from Latin, from exordiri 'begin', from ex- 'out, from' + ordiri 'begin'
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