According to the regulations of our school, compulsory courses and limited courses should be retaken one or two days before the start of next school year. The specific time will be sent by the counselor to the monitor of each class and conveyed by the monitor of each class.
In addition, if you fail the make-up exam, you will retake it. If you haven't retaken the exam, wait for the graduation exam. It doesn't matter if you just fail the course, as long as there are enough credits in the training plan before graduation. Does not affect the evaluation. Of course, this is written in our student handbook. Your 12 student handbook seems to have been changed. You can check your student handbook, which has a detailed introduction.
Senior students of big machinery had better advise you to study hard and stay away from failing classes. In particular, the professional basic courses of our major must be easy to learn, and the courses to be learned in the future are based on this. So, work hard.