Similarly, access to fee-based services can also be controlled based on roles to ensure proper use of services.
类似地，还可以根据角色控制对收费服务的访问，以确保对服务的适当使用。
At this point in my investigation, I wanted to see how much I could find for nothing — or next to nothing — before resorting to fee-based services.
依据这样的想法进行调查，我想知道在诉诸付费服务之前能免费或几乎免费找到多少信息。
Optional fee-based services offer more extensive monitoring of credit information, personal identity records, social security Numbers and online transactions.
你还可以选择收费项目，获取对信用信息、个人身份记录、社会保障号码和其他网上交易活动的更全面的监测服务。
Optional fee-based services offer more extensive monitoring of credit information, personal identity records, social security Numbers and online transactions.
你还可以选择收费项目，获取对信用信息、个人身份记录、社会保障号码和其他网上交易活动的更全面的监测服务。
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