Graduation is moderately difficult. Compared with other countries, it is more difficult to apply for a doctoral degree at the University of Toronto, Canada, with a success rate of about 30%, but the graduation difficulty is moderate, with an average of about 4.5 years. The requirements for doctoral graduation in Toronto, Canada are still relatively high. For example, some tutors require three SCI to graduate, which is relatively high compared with many universities in Europe that do not require articles. However, it will be easier to immigrate after graduating from Canada with a doctorate.