prompt reactor

例句：

1. 1.The prompt of the meeting was to discuss the budget.
   会议的目的是为了讨论预算。
2. 2. She was prompted to help by her friend's kindness.
   她被朋友的善良所激励去帮助。
3. 3. The prompting of the teacher made the students pay more attention.
   老师的引导使学生们更加专注。