承载营销信息的媒介必须易于传播和复制：电子邮件，网址，图片，软件下载。
The medium that carries your marketing message must be easy to transfer and replicate: E-mail, website, graphic, software download.
随着电子邮件营销活动和客户关系管理软件，RFM评级已成为一个重要的工具。
With the advent of email marketing campaigns and customer relationship management software, RFM ratings have become an important tool.
随着电子邮件营销活动和客户关系管理软件，RFM评级已成为一个重要的工具。
With the advent of email marketing campaigns and customer relationship management software, RFM ratings have become an important tool.
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