At the same time, the pension system is constructed in a way which makes it worthwhile to have an income in addition to the pension, be it income from private pension schemes or from other types of savings schemes.
也就是说，养恤金制度建立在除养恤金以外还应该有收入的原则基础上，无论这笔收入来自私人养恤金计划，还是来自其他种类的储蓄计划。