It is also likely to lead to higher bills for captive customers such as businesses with switchboards, which cannot do away with their landlines so easily.

这也很有可能使很多被迫型客户的账单猛涨，比如那些设有总机的企业，它们要摆脱固定电话可没那么容易。

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She found some captive customers: the employees of NeXT, the computer company Mr. Jobs started after being pushed out of Apple.

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Passengers were not only captive customers for food and drink but, from Ryanair.com, they could be sold car hire, insurance, hotel bookings and airport transfers.

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Now deregulated, electric utilities compete for what used to be captive customers, and many operate in non-regulated businesses, such as trading energy futures or building power plants on spec.

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