procedure block

例句：

1. 1. The program isdesigned to block access to the system untilthe user logs in.
   该程序旨在在用户登录前阻止对系统的访问。
2. 2.The programmer has blocked a section ofthe code that was causing errors.
   程序员已经封锁了一段导致错误的代码。
3. 3. The softwaredeveloper used a procedure block to prevent unauthorized access.
   软件开发者使用了程序块来防止未经授权的访问。