v. 为……作序；以……作为开场白，作为……的开端（preface 的过去式和过去分词）

Preface \Pref"ace\, v. t. [imp. & p. p. {Prefaced}; p. pr. & vb.
n. {Prefacing}.]
To introduce by a preface; to give a preface to; as, to
preface a book discourse.