introductory course vs. specialized course
辨析：前者是大一(freshman)和大二(sophomore)学生上的“基础课”，可以是不少专业都包含在内的内容（如微积分）。后者是大三(junior)和大四(senior)学生上的“专业课”，一般为本专业特有的高级课程（如物理系的四大力学）。
例句：
If you're after an introductory course in developing personal style, this is the perfect text.
State universities would provide support services to a network of colleges not located on the central university campus, including administrative and financial services, library services, and central computing facilities, as well as specialized courses for advanced undergraduates.