### 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 professional begins to segment, and many specialized courses are dominated by the basics.
### Errors: There is a major error of incorrect translation is missing content from the correct translation at "dominated by the basics". There is a major error of incorrect translation has stylistic problems at "the professional". There is a minor error of incorrect translation includes information not present in the correct translation at "the university".

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