Failing a course is synonymous with failing or failing. Specifically, it means that one or more subjects fail the exam for various reasons and fail to meet the prescribed standards, which means that they need to retake or retake the exam. "Failing" comes from the word "failing", which is very common in modern university campuses. If a subject fails, college students often say that a subject is "failed", and gradually the word "failed" came into being and spread from middle school to middle school. Several types of people who fail in class mainly focus on not going to class, going to class, and not practicing after listening. There are three main situations of failing the exam: make-up, first make-up and then re-examination and direct re-examination.