introduction/ˌɪntrə'dʌk∫ən/

n.

➊ the act of introducing

➋ the act of making sth happen or exist for the first time

➌ a written or spoken explanation about sth at the beginning of a book or speech

n.

➊ [U; C，常~s] 介绍：a letter of introduction 介绍信

◇The host made the introductions as the guests arrived. 客人到时，主人一一作了介绍.

➋ [C] 引进，传入；（初次）采用：[introduction of sth (to a place)] the introduction of new drugs 新药的采用

◇the introduction of Buddhism to China 佛教传入中国

➌ [C] 引言，导论，序言：[introduction to sth] In the introduction to his book, the author explains why he wrote it. 在书的序言里，作者解释了他写此书的原因。

构词introduce + -tion

音组-uction/-'ʌk∫ən/

construction; instruction; introduction; production

常犯错误

✗ Have you read the introduction of the book?

✓ Have you read the introduction to the book? 你读过这本书的序言吗？