Before the sophomore year, it is less than the sophomore year, so it does not include the sophomore year. Several problems that should be paid attention to in the second year of college. The sophomores and juniors are the two most important stages in the whole university life. Grasping these two stages will basically master the whole university.
If you want to take the postgraduate entrance examination, start preparing from your sophomore year. If you want to find a job directly after graduation, on the one hand, you should keep up with the study of culture class, on the other hand, you should find some small jobs to accumulate work experience.