n.

1. 介紹；正式引見[U][C][P1]
   He was shaking her hand before I could finish the introduction.

   未等我介紹完，他就在握她的手了。

2. 引進，傳入[U][（+of/to/into）]
   The government saw the introduction of new technology as vital.

   政府認為引進新技術至關重要。

3. 採用；被採用的東西；引種[U][C]
   Television is a later introduction than radio.

   電視的使用遲於無線電。

4. 引言，序言；序論[C][（+to）]
5. 入門（書）[C][（+to）]
   an Introduction to Biochemistry

   《生物化學入門》

6. 序曲[C]

n.

1. the action of introducing or being introduced.
   ▸a thing, such as a product or plant, that is newly brought in.
2. a formal presentation of one person to another, in which each is told the other's name.
3. a preliminary thing, such as an explanatory section at the beginning of a book, report, etc.
   ▸a preliminary section in a piece of music.
4. a book or course of study intended to introduce a subject to a person.
   ▸a person's first experience of a subject or thing.