feedback
/ˈfi:dbæk; `fidˌbæk/ n[U]
1 information about a product, etc that a user gives back to its supplier, maker, etc 反馈信息
We need more feedback from the consumer in order to improve our goods. 我们需要从消费者那里多得到些反馈信息以提高产品质量.
2 return of part of the output of a system to its source, esp so as to modify the output 反馈
The feedback from the computer enables us to update the program. 计算机的反馈能使我们更新程序.