WHO recommends financial pooling and pre-payment, such as insurance schemes.

世卫组织建议统筹资金和预付费用，例如采用保险方案。

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Some examples are allowing a post-payment, pre-payment (at reservation time for instance), or continuous payment scheme.

例如，后付费、预付费（比如在预订服务时付费）或连续付费方案。

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Now, it has three pricing modes of the MBS: the method of establishing a pre-payment model, the method of the option-adjusted spread and the method of the option pricing.

从目前国外学术界和业内基于债券定价原理对MBS的定价思路上，主要有三种定价模式：建立提前偿付模型法、期权调整价差法和期权定价法。

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The government said they had frozen the price of prescription pre-payment certificates for a further year.

BBC: Prescription charges to rise by 20p in England

In addition, the life insurance industry is sure to fight the pre-payment idea.

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Many were simply too early, investing in early solar systems that were expensive, unreliable, and sold without finance or pre-payment.

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