adj.介绍的；引导的；开端的
The first paragraph of the body is introductory. 正文的第一段往往具有介绍的特点。
This book includes a good introductory chapter on forests. 这本书有一章关于森林的很好的序篇。
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。
She made a few introductory remarks. 她讲了几句开场白。
