Simply put, it means studying in China for three years (School of Overseas Education, Sichuan University) and studying abroad for one year. After that, I can get a bachelor's degree from a foreign university.
You can continue to get a master's degree from a foreign university after studying for another year.
Moreover, the academic qualifications obtained in the end were brought back to China before they were recognized.
The following is the HND certificate issued by the Ministry of Education to Sichuan University students.