### Chinese: 进入大学本科阶段，专业开始细分，很多专业课程以基础知识为主。
### English: Entering the undergraduate stage of the university, the majors begin to be subdivided, and many professional courses focus on basic knowledge.
### Errors: There is no error in the English translation.

### Improved English: Majors are segmented after entering the undergraduate study, and many specialized courses are carried out with basic knowledge as the main content.
