We usually refer to the first, second and third grades of graduate students, that is, their study in the academic year after they are admitted to graduate schools. Postgraduate is a kind of qualification certification of national education, which is generally carried out by ordinary universities with master's and doctoral degrees. You can also be called a graduate student after graduation, which means someone with a graduate degree.
In China, graduate students are divided into master students and doctoral students. According to different degrees, it can be divided into academic graduate students and professional graduate students. Academic graduate students generally refer to graduate students with academic degrees and established according to disciplines.
Quasi-research one has passed the re-examination and has not yet reported for the start of school. Some refer to this stage as quasi-graduate stage, while others refer to this stage as graduate zero, that is, after passing the initial examination and re-examination, they are determined to be a class of students who can go to a laboratory for graduate study. At this time, they usually enter the laboratory to participate in research work.