The University of Macau, all universities in Hong Kong, universities in the United States, Canada and other European and American countries, all their doctoral students are free of tuition fees, and they are subsidized every month, which is equivalent to getting paid to go to school, but they have to help schools or tutors complete teaching assistants and scientific research assistance. For example, doctoral students at the University of Hong Kong will receive at least HK$ 13000 scholarship every month. After deducting the tuition fee of about HK$ 4,000 per month, more than HK$ 9,000 will be left for their own use.