例如，将商业性住宅的按揭首付强制性提高至30%，银行则必须阻止消费性信贷被用于住房购置。

For example, mandatory down payments for commercial residential housing were raised to 30%, and Banks must prevent consumer loans from being used for the purchase of housing.

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然而，消费者有可能要承担这一强制性全国计划的部分费用。

However, consumers are likely to pick up some of the costs of the compulsory, nationwide scheme.

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同样，还有一些情况下服务身份并不需要消费者的同意，如系统安全服务这样的强制性服务。

Also, there are cases where the status of the service does not require agreements with the consumers, for example, a mandatory service like system security service.

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