英语语法分析

If higher retirement ages in countries with insurance-based state schemes do not make them actuarially sound, then taxes should be increased, or benefits reduced, until they are.

如果在基于保险体系的国家，退休年龄的提高在精算可行的角度上是不可行的，那么税负就应该加重，或者收益减少。 一直到退休年龄提高可行为止。