introductory

• 指作为某一主题或课程的入门、基础的；初步的、引导性的。常用来形容介绍性的内容或预备性的材料。

Serving as an introduction to a subject or course; basic or preliminary.

1. Opening or beginningB1formal

   Serving to open or start something, such as a course, event, or text.

   引导性的

   • The introductory chapter outlines the main themes of the book.
   • She attended an introductory workshop on photography.
   • The professor gave an introductory lecture on quantum physics.

   同义词firstinitialinitiatoryopeningprefatorypreliminarypreparatorystarting

   反义词closingconcludingfinallastterminal

2. Basic or foundationalB1formal

   Serving as a base or starting point for further learning or development.

   入门的

   • This is an introductory course in economics.
   • The manual provides introductory instructions for beginners.
   • He bought an introductory guide to gardening.

   同义词basicelementaryinitialpreliminarypreparatoryprimaryrudimentary

   反义词advancedexpertspecialized

3. Prefatory or preliminaryB2formal

   Serving as an introduction or preface to a larger work or event.

   介绍性的

   • The introductory remarks were given by the host.
   • She wrote an introductory note for the anthology.
   • The introductory section sets the context for the entire report.

   同义词initialopeningprecursoryprefatorypreliminarypreparatory

   反义词closingconcludingfinalterminal