As workers earn more, their pensioncontribution goes up steadily.
随着工人们收入增加，他们的养老金贡献也会稳步上升。
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The hope is that they will barely notice the difference in take-home pay but that a higher contribution rate (perhaps 10-15% in total) will in due course allow them to earn a decent pension.
They would also have hybrid plans, with part of the traditional defined-benefit pension replaced by a defined-contribution plan of the sort common in the private sector.