企业收入总是由少数重点客户贡献。

Enterprise income mainly comes from a minority of key customers.

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一般来说，20%的优质个人客户贡献了至少80%的利润。

Generally speaking, 20% of VIPs contribute at least 80% of interests.

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每年或更频繁估算特定客户贡献的收入，取决于产品使用数据的获得。

The income associated with a given customer can be estimated on a yearly basis or more frequently, depending on access to product usage data.

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