Failing a course consists of two parts: the usual grades and the final exam results. Teachers don't call the roll in every class. If you miss a class, you will count your attendance in your usual grades, and it will have little effect once. However, more absenteeism will affect the usual grades, and the final exam results will also have an impact, resulting in a low total score and failing the course.

The university missed a class, just as the teacher called the roll to check attendance, but the roll call didn't arrive. Every school has its own student code, which includes punishment for truancy. The consequences of skipping classes occasionally will not be too serious. The general treatment method is to deduct a certain normal score in proportion. As long as you study hard in the later classes, you won't fail in the exam.