feedback
/ˈfiːdˌbæk/
中文意思
回饋、意見反應
Critical assessment of a process or activity or of their results.
After you hand in your essays, I will give both grades and feedback.
(control theory) The part of an output signal that is looped back into the input to control or modify a system.
The high-pitched howling noise heard when there is a loop between a microphone and a speaker.