The main reason for the huge debts by the varsities was the over-expansion of university enrolment and campus construction over the past 10 years , xiong bingqi , vice president of the 21st century education research institute said .

高额债务的主要原因是大学在过去10年间的过度扩招和扩建，21世纪教育研究院副院长熊丙奇指出。