SPU

例句：

1. 1. The student dormitory is located in the heart of the campus.
   学生宿舍位于校园中心。
2. 2. This software package is very easy to use.
   这个软件包使用起来非常简便。
3. 3. Our service agreement stipulates that we will provide a refund if the product is not as described.
   我们的服务协议规定，如果产品不符合描述，我们将提供退款。