social security / medicare tax (payroll tax)最初就是低保。富人，中产都不参入的。

来源: 不开窍于 2017-11-15 11:55:53 [旧帖] [给我悄悄话] 本文已被阅读：次

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social security / medicare tax (payroll tax)最初就是低保。 富人，中产都不参入的。