feed-back

柯林斯词典

1. N-UNCOUNT If you get feedback on your work or progress, someone tells you how well or badly you are doing, and how you could improve. If you get good feedback you have worked or performed well. 反餽
Continue to ask for feedback on your work. 繼續征求對你工作的反餽。
2. N-UNCOUNT Feedback is the unpleasant high-pitched sound produced by a piece of electrical equipment when part of the signal that comes out goes back into it. (電子信號産生的) 尖厲噪聲
The microphone screeched with feedback. 麥尅風發出了尖厲的噪聲。