demonstration lesson

例句：

1. 1. This is a great opportunity forstudents to learn from the teacher'sdemonstration.
   这是一个让学生从老师示范中学习的绝佳机会。
2. 2. The demonstration was designed toshow how to use the new tool effectively.
   这次演示是为了展示如何使用新工具的。
3. 3.The demonstration lesson covered all aspects of thesubject, from basic concepts to advanced techniques.
   示范课程涵盖了该学科的所有方面，从基本概念到高级技巧。