Can I take a semester off from Yangzhou University?

Yes

Time to apply for suspension of study: Within two weeks of the start of the semester. Department responsible for: Office of Academic Affairs, Academic Affairs Office. Processing procedures: Students who request a suspension of study must apply in writing (provide the corresponding (e.g. supporting documents, etc.), the school where you are working will put forward your opinions and submit them to the Academic Affairs Office for approval.

If a student is ill and the school hospital provides a diagnosis and a suspension of study, the student will submit a written application to the college and fill it out