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Running an image on EC2 requires an additional fee based on the amount of time spent in the cloud.

在EC2上运行镜像还需要按照使用云的时间付额外的费用。

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The company pays an additional fee to its E-mail provider to archive e-mails. That way, there is no question of whether to keep or delete e-mails.

他们公司还额外付费给电子邮件服务提供商进行邮件存档，这样就不存在是否保留电子邮件的问题。

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Instead, they are charged an additional fee for every additional chunk of data that they use.

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Verizon Wireless asserted that third-party tethering applications could enable its customers to tether without paying an additional fee.

ENGADGET: Verizon to stop blocking tethering apps, settles with FCC for $1.25 million

It claims, for an additional fee, to be able to put together a portfolio of the best hedge-fund managers.

ECONOMIST: Buttonwood