这座古老的石桥历经数百年风雨依然坚固，展现了真正的永恒。

The ancient stone bridge, standing strong for centuries, demonstrates true ___permanence.

这座古老的石桥历经数百年风雨依然坚固，展现了惊人的持久性。

The ancient stone bridge has stood strong for centuries, demonstrating remarkable ___permanence.