把東西帶進來
門後面換成一個地方或一個社會：被帶進來的不是人，而是制度、產品或物種，重點一樣是「以前這裡沒有」。
introduction (bringing something new) · noun · B2
When something is first brought into a place where it did not exist before.
傳入、引入
核心畫面
Picture a door being held open for someone who has not been inside before: a stranger led into a room, a crop carried into a country, a reader walked into a subject. Introduction is always that first crossing — and English also uses the word for the thing that does the leading in, like the opening pages of a book.
可以想成：有人幫一個從沒進來過的對象把門推開——把陌生人帶進房間、把一種作物帶進一個國家、把讀者帶進一門學問。int…更多收起
可以想成：有人幫一個從沒進來過的對象把門推開——把陌生人帶進房間、把一種作物帶進一個國家、把讀者帶進一門學問。introduction 講的一直是那個「第一次跨進來」的動作；而英文也用同一個字指負責帶路的那個東西，例如書最前面那幾頁。From the picture
開頭那一段
帶路的角色變成一段內容：放在最前面，負責把讀者或聽眾接進正題。
introduction (preface) · noun · B2
A written or spoken part at the beginning of a book, speech, or talk that explains what it is about.
序、引言
第一次接觸到
這次跨過門的是你自己：指一個人生命中第一次碰到某樣東西的那個經驗。
introduction (first experience) · noun · B2
Someone's first experience of something new.
初次接觸
Also in this word
introduction (of people) · noun · B2
The act of telling people who have not met before each other's names.
介紹、引見
introduction (letter) · noun · B2
A letter written by someone you know that explains who you are, given to a person you have not met.
介紹信
原始詞典資料4 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
introductionnoun/ˌɪntɹəˈdʌkʃn̩/
- 1
The act or process of introducing.
- the introduction of a new product into the market
- 2
A means, such as a personal letter, of presenting one person to another.
- David was feeling groggy at his introduction to Sophie, and didn't remember her name.
- 3
An initial section of a book or article, which introduces the subject material.
- This book features a preface by a well-known botanist, and an introduction by the author's mentor at university.
- 4
A written or oral explanation of what constitutes the basis of an issue.
- ECON 101: introduction to economics
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。