late 14c., "act of bringing into existence," from Old French introduccion and directly from Latin introductionem (nominative introductio) "a leading in," noun of action from past participle stem of introducere "to lead in, bring in, to introduce," from intro- "inward, to the inside" (see intro-) + ducere "to lead" (see duke (n.)). Meaning "initial instruction in a subject; an introductory statement" is mid-15c. The sense of "formal presentation of one person to another" is from 1711.
权威例句
1. Millions of words have been written about the introduction of the euro.
有关采用欧元的文章已经有很多。
2. On balance, the book is a friendly, down-to-earth introduction to physics.
总而言之,这是一本通俗而务实的物理入门书。
3. The camera has undergone only two minor tweaks since its introduction.
那款相机自从推出以来仅经过两次小的改进。
4. He is best remembered for the introduction of the moving assembly-line.
他最为人铭记的创举是率先采用流水装配线。
5. Introduction of electronic point-of-sale systems is improving efficiency.