Primary school is a school where people receive formal education at the initial stage and is an important part of basic education.
Junior high school generally refers to the middle school with nine-year compulsory education, which is a stage of transition to senior high school and belongs to the category of secondary education.
Senior middle school is a higher education institution after the end of nine-year compulsory education in China. It is a three-year program, connecting junior high school and university.
Specialized education is mainly undertaken by higher vocational colleges, and some undergraduate colleges also offer specialized courses. College diploma is not issued, only college diploma is issued.
Undergraduate course is the basic part of higher education, which is generally carried out by universities or colleges. Few higher vocational colleges have developed applied undergraduate education.
Postgraduate is a kind of qualification certification of higher education, which is generally carried out by ordinary colleges and universities with master's and doctoral degrees and scientific research institutions with postgraduate training qualifications.
Doctor is a degree that marks a person's ability to produce original results or academic ability, and it is the highest degree at present.