Chapter five lists some defense by the school including voluntary assumption of risk express agreement and mixture negligence .

第五章分析了学校的抗辩事由，主要包括 自愿 承担风险、明示同意以及混合过失。

If someone is willing to take the corresponding debt then it falls into the scope of voluntary assumption of debt and should be allowed .

第二种情形是有人自愿承担相应的债务，则属于 自愿 承担债务的范畴，应当允许。