巩固老客户并与其保持密切联系。
Consolidate old customers and keep a closed relationship with them.
销售推广：巩固老客户，抓住准客户，挖掘潜在客户。
Saless Promotion: to Consolidation the Original Customers, Seize the Prospective Customers, Mining Potential Customers.
销售推广：巩固老客户，抓住准客户，挖掘潜在客户。
Sales Promotion: to Consolidation the Original Customers, Seize the Prospective Customers, Mining Potential Customers.
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