引出物

例句：

1. 1. The experiment was designed to introduce new ideas into the classroom.
   这个实验旨在将新观念引入课堂。
2. 2. The teacher used a piece of paper as an introductory material to explain the concept.
   老师用一张纸作为引入材料来解释这个概念。
3. 3. The introduction of new technology has greatly improved the efficiency of our production process.
   新技术的引入大大提高了我们生产过程的效率。