It is important to note which models have been established—for example, server billing at US$0.10 per hour rather than large upfront procurement costs.

重要的是要注意实现了哪种模式，例如，服务器以每小时 US$0.10 计费，而非以大量的前端采购成本计费。

youdao

Retention costs include customer support, billing, promotional incentives, etc.

保留成本包括客户支持、寄账单、促销激励等等。

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In such a case, a billing model based on gigabytes used determines what the costs of the service per month will be.

在这种情况下，使用基于千兆字节的收费模式来确定每个月服务的成本是多少。

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Insurance overhead and billing costs consume over one-third of spending.

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Tom Salemi, editor of the Venture Capital Analyst Newsletter on Healthcare, says the clinics are cheaper to run than doctor's offices, urgent care centers, and ERs, because they have lower labor, equipment, and billing costs.

NPR: Health Care Moves to Walk-In Clinics

The DSO handles marketing, human resource support, accounting and billing, spreading costs efficiently across several practices.

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