注册者将不得不自掏腰包为许多服务额外付费，这将促使他们仔细考虑，一项昂贵或多余的测试是否物有所值。
Enrollees would have to pay more money for many services out of their own pockets, and that would encourage them to think twice about whether an expensive or redundant test was worth it.
最明显的方式就是强制人们注册或者付费（这样可以获得顾客的信用卡及居住地信息）。
The obvious way to do this is to force people to register for websites, or even to pay (which reveals their credit-card details and where they live).
根据您的需要，您可以注册免费的个人帐户，或付费的商业帐户。
You can sign up for a free Individual account, or a fee-based Commercial account, depending on your needs.
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