A better bet would be for the firm to charge corporate users for premium services.
公司有个更好的选择，就是向企业用户收取增值服务费。
This makes it hard for operators to build brand loyalty, let alone sell premium services.
如此一来，运营商就很难让客户建立起品牌忠诚度，更不用说向他们推销额外的收费服务了。
This makes it hard for operators to build brand loyalty, let alone sell premium services.
如此一来，运营商就很难让客户建立起品牌忠诚度，更不用说向他们推销额外的收费服务了。
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