Program costs include a one-time enrollment fee and a registration fee for each exam you take.

项目费用包括一项一次性注册费用和你每场考试的报考费。

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They also offer installation support or a one-time fee as well as full hosting for $15/month.

另外公司也提供安装支持，这需要一次性的手续费，另外也提供主机托管，费用是每月15美元。

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Whether it’s a subscription service or a one-time fee, PayPal is generally what is used to process payments, due to their widespread popularity.

由于它的广泛普及，无论是订阅服务或是一次性费用，PayPal都被用来处理款项。

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Microsoft will continue selling software the traditional way, for a one-time fee for one Windows computer.

NPR: Review: Microsoft Office Pricey, But Good Value

Headhunter commissions, once limited to a one-time fee equal to one-third of the recruit's annual salary, have morphed to include stock options and warrants as well.

FORBES: The Skin Game, Updated

STAF, Inc.has 10 private services given a unique lifetime result-guarantee with only a one-time fee.

FORBES: Tesla: Better Warranty? Check! Upgradeable Cars? Sure! 500-Mile Batteries? Maybe Soon!