The company has been expanding its customer base using trade magazine advertising.

这家公司一直通过商业杂志广告来扩大客户群。

《柯林斯英汉双解大词典》

By contrast, an external system serves as an interface between a company and its customer base.

相比之下，外部系统是公司与其客户群之间的接口。

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Does TripAdvisor know its customer?

TripAdvisor是否了解它的客户？

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Nuru Design plans to increase its customer base tenfold by the end of the year.

VOA: standard.2010.02.24

Now that Apple has upgraded its customer base it has no place to go.

FORBES: Apple R.I.P.

In one example, Get Satisfaction helped music service Rhapsody vastly decrease its customer support costs.

FORBES: Get Satisfaction Nabs $10 Million For Customer Service

Mr. Castle said that the bank has retained the "vast majority" of its customer base.

WSJ: After Years of Growth, Banks Are Pruning Their Branches