准保

例句：

1. 1. We need to make sure that theproject is completed on time.
   我们需要确保项目按时完成。
2. 2. The company promises to provide excellent customerservice.
   公司承诺提供卓越的客户服务。
3. 3. The agreement providesa guarantee of payment for the goods.
   该协议为货物支付提供了保证。