### 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: Specialties are divided in details after entering into the undergraduate college stage, and many specialized courses are taught based on basic knowledge.
### Errors: There is a major error of incorrect translation has stylistic problems at "Specialties are divided in details". There is a major error of incorrect translation is missing content from the correct translation at "undergraduate college stage".

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