这就比较容易的解释固定缴款计划的含义：雇主每年仅仅缴纳占工资总额一部分比例的费用。
It is relatively easy to work out what that means with a DC scheme: the employer simply pays a proportion of its payroll into it each year.
相对劳动力成本，运输费用所占比例很小，去年冬天大幅下跌，现在已有反弹。
Transport costs are a small fraction of labor costs, but they are now rebounding from a vertiginous plunge over the winter.
分析家指出，该费用将大大低于50：50的比例。
Analysts say the fee will be much less than the 50-50 split.
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