subroutine tape

例句：

1. 1. The program's subroutine is responsible for executing the main logic.
   该程序的子程序负责执行主要逻辑。
2. 2.The subroutine was designed to optimize the system's performance.
   这个子程序被设计来优化系统的性能。
3. 3. The subroutine was tested extensively before being implemented in the final version of the software.
   在软件最终版本实现之前，这个子程序经过了广泛的测试。