Personally, it is mainly manifested in the company's lack of investment and time. First of all, employees can't enjoy students' questions and answers, let alone equal relations, and more is the relationship between superiors and subordinates. Because of the education level, there will be a generation gap in communication and so on. Of course, students can't have the so-called conditions of not working but training. Of course, it is difficult to match reasonably. There is no better resource than students. It is difficult to get better grades than students.