一种公司支持型的退休养老计划，公司从雇员薪资中扣除一部分薪酬作为供款，为雇员存入专门的账户，有一部分公司还会同期供应相应的供款。
A company-sponsored retirement plan where employees make deposits (contributions) to an account. Contributions are deducted from employee's pay; some companies match those payments.
Remember, you always own 100% of contributions that you make.