introduction

• 名词，指首次介绍或引入某事物，也指书籍、演讲或活动的开头部分，用于提供背景或说明。

A noun referring to the act of presenting something for the first time, or the initial part of a book, speech, or event that provides background or context.

1. First part of somethingA2formal

   The beginning or opening part of a book, speech, or piece of writing.

   引言

   • The introduction of the book explains the author's main ideas.
   • She gave a brief introduction before starting her speech.
   • The introduction to the course covers basic concepts.

   同义词beginningforewordintrolead-inopeningpreambleprefacepreludeprologuestart

   反义词conclusionendingepilogue

2. Act of presenting someoneA2formal

   The act of making someone known to another person formally.

   介绍

   • He made the introductions at the business meeting.
   • The host handled the introduction of the guest speaker.
   • I need a proper introduction to meet the CEO.

   同义词presentation

3. Bringing something into useB1formal

   The act of bringing a new product, idea, or system into use for the first time.

   引入

   • The introduction of the new software improved efficiency.
   • The company announced the introduction of a new smartphone model.
   • The introduction of electric cars is changing the automotive industry.

   同义词debutestablishmentimplementationinitiationinstitutionlaunchunveiling