The purchasing power of money has depreciated since she bought her savings certificates.
自从她买
储蓄券以后,现款的购买力己

。
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The more they spread, the greater the focus on missile defense systems. Eighteen countries already have invested in some form of these vastly expensive systems, and five more are in the process of developing or purchasing them.
导弹覆盖
越远,导弹防御系统就越受到关注。有18个国家已经投资了一些价格不菲
反导弹系统,另外还有五个国家正准备研发或
购买这种系统。