prefacen.序文； 绪言； 前言v.作序，写前言；以…开始preface and epilogue序跋preface by professor教授作序prefaces and epilogues序跋preface and postscript序跋preface with something在讲主要问题之前先讲某事prefaces and postscripts序跋Preface for House of Tyro混合动力客车preface by doing something在讲主要问题之前先讲某事preface de Serge Lemoine.作者声明: Dominique Lobstein ;preface before Tang dynasty先唐诗序

1. An essay written as a preface to a more detailed work.
   序言作为更为详细的作品的序言而写的文章