The centerpiece of the president ' s plan is a proposal to allow younger workers to divert some of the taxes they pay toward their pensions into private retirement accounts that could be invested in the stock market 布什总统改革计划的主要内容是,让较年轻的职工把他们所交的部分社安税投放在私人退休帐户中,这个私人退休帐户可以在股票市场上投资。