major course

例句：

1. 1. She is majoring in computer scienceat the university.
   她在大学主修计算机科学。
2. 2. The school offers a variety of majorcourses for students to choose from.
   学校为学生提供多种主修课程供选择。
3. 3.He has taken several major courses in businessmanagement during his time at the university.
   他在大学期间已经选修了若干门商业管理的主要课程。