end-user to SSCP echo check

例句：

1. 1.The end-users of the product arethe customers who will use it.
   产品的终端用户是将要使用它的客户。
2. 2. The company's main goal is to provide high-quality products to its end-users.
   公司的主要目标是向其终端用户提供高质量的产品。
3. 3. The end-users of this softwareare professionals who need to manage their projectsefficiently.
   这个软件的终端用户是那些需要高效管理项目的专业人士。