introduction
🇬🇧/ˌɪntrəˈdʌkʃn/ 🇺🇸/ˌɪntrəˈdʌkʃ(ə)n/📚 2926 85 2四级六级考研雅思中考高考The introduction to a book or talk is the part that comes at the beginning and tells you what the rest of the book or talk is about. 引言; 序
noun [抽象名词]初次投入使用,采用;介绍,引见;初次经历,首次体验;序言,引言;导读,入门指导;前奏;介绍信;外来品,新引进的东西
The book is a friendly, down-to-earth introduction to physics.
这是一本简明、实用的物理学入门书。
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