College students are thinking that they can find a job and get a high salary after graduation, and they can only rely on universities to improve themselves. If they work harder to improve their social status, they will try their best to use CET-4 and CET-6, teacher qualification certificate, computer grade 2, accounting certificate and driver's license as "chips" for high salaries in the future. Preparing for the exam is equivalent to preparing for the big exam, which will make them very tired.

There is more time for self-study in universities, and no one says where to work hard. Efforts without direction are very tiring. But in college, it's different. If the teacher gives you less homework, you won't find that you are studying. You have no goal or motivation. You feel like you don't know what to do or how to start. You want to study, but you don't know how to work hard and don't know the direction. So after an effort, you didn't get any improvement. You are exhausted and didn't get the result you wanted. You feel particularly tired physically and mentally.