客户之前没有接触过这种产品的翻译：Before customers have no contact with the product 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Customers have not previously had contact with this product

Before customers have no contact with the product

In front of customer has not contacted this product

Before customers had any contact with this product

Before customers have no contact with the product