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

自从她了储蓄券以，现款的购力己降低了。

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

纵观史，可以说，有三个基本的弱点：虚荣、迷信、追求有形的财富。