Usage charging means billing a client or department based on system resource, system administrator time, or raw material (for example, printer paper) usage.

使用收费表示根据客户或部门对系统资源、系统管理员时间、或者原始材料(例如，打印纸)的使用情况进行收费。

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Instead, Hubbell will plead guilty to the felony charge of concealing material from federal regulators relating to billing records of the Rose Law Firm in Arkansas.

CNN: Hubbell to plead guilty in deal with Starr