Adjective:
serving to open or begin;began the slide show with some introductory remarks
serving as a base or starting point;a basic course in Russian
basic training for raw recruits
a set of basic tools
an introductory art course
serving as an introduction or prefaceintroductory exercise准备练习
近义词 early早basic基本的opening开口first第一的starting出发simple简单的incipient起初的prefatory前言的elementary基本的initial词首字母preliminary初步的preparatory预备的exploratory勘探的entry-level入门水平的prefatorial序言的(引言的…
形容词99%,名词1%
用作形容词The first paragraph of the body is introductory.正文的第一段往往具有介绍的特点。
I would consider this introductory text a success.我将认为这本导引性的教科书是成功的。