The purchasing power of money has depreciated since she bought her savings certificates.

自从她买了储蓄券，现款的购买力己降低了。

Let us look trought human's history, we can say, human being has three weakness: peacockery, fetish, and purchasing money and other tangible wealth.

纵观人类历，说，人类有三个基本的弱点：虚荣、迷信、追求有形的财富。