全体的な構成は良く出来ていると思います。
細かい点のミスがありますが、それを修正すれば、更に良くなります。
Some university Students choose to join short-term work programs at companies called internships.
→ Some university students choose to join short-term work programs at companies called internships.
Joining internships has benefits, such as knowing more about Companies and making new friends.
→ Joining internships has benefits, such as learning more about companies and making new friends.
On the other hand, there are also disadvantages to joining internships. → 〇
For example, they may not able to understand the job or making time for study is difficult.
→ For example, students may not be able to understand the job well, or it may be difficult to make time for their studies.
参考にしてください。