Clarification of course objectives -Introduction的用法和樣例：
例句
- This course is an introduction to basic metal-cutting principles and their practical applications.
本課程介紹基本的金屬切削原理及其實務應用。 - This course introduces the mathematical modeling techniques needed to address key questions in modern biology.
本課程介紹近代生物學上需要提出重要問題的數學模型方法。
