feedback

/ˈfidˌbæk/

the process in which part of the output of a system is returned to its input in order to regulate its further output

中文释义：反馈；反馈信息

The teacher provided constructive feedback on each student's essay.

老师对每个学生的论文提供了建设性的反馈。

Customer feedback is essential for improving our products and services.

客户反馈对于改进我们的产品和服务至关重要。