The so-called preparatory course is the basic preparatory course for universities, which is set up for international students who can't meet the requirements of directly entering undergraduate degree courses. Because the current education system in China is different from that in western Commonwealth countries, high school graduates or university graduates in China cannot directly enter the first-year courses abroad. Therefore, all high school graduates or college graduates from China must complete the pre-university courses and pass the exams before they can formally enter the first-year courses.