指令计数器

例句：

1. 1. The teacher gave the students an instruction on how to solve the problem.
   老师给学生们一个解决问题的指令。
2. 2.She followed the instructions carefully and completed the task successfully.
   她仔细地按照指示完成了任务。
3. 3.The company issued new instructions for the employees to follow.
   公司发布了新的员工指导方针。