Other major courses are electives, which means students are free to choose from a list when selecting courses.

其他专业课程是选修课，这意味着学生在选课时可以从列表中自由选择。

Ultimately, major courses and Gen Eds are helping us chip away at the total number of credit hours we need to graduate.

根本上，主修课程和 Gen Eds 正在帮助我们减少毕业所需的总学分数。

One way to do that is to balance your course load, because major courses are usually not the only required courses in college.

一种方法是平衡你的课程负担，因为主修课程通常不是大学里唯一的必修课。

So some major courses may have prerequisites, which is a course you must take before you are allowed to take a more advanced course.

所以一些专业课程可能有先修科目，这是一门你必须在你被允许学习更高级课程之前学习的课程。