introductory
- adj. 引导的，介绍的；开端的
英英释意
- 1. serving to open or begin;
- "began the slide show with some introductory remarks"
- 2. 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"
- 3. serving as an introduction or preface