feedback/ˈfiːd.bæk/名词反馈信息,反馈意见positive/negative feedback正面的/负面的反馈信息(扩音器的)反馈噪音Feedback from the sensors ensures that the car engine runs smoothly.探测器的反馈能确保汽车引擎平稳运转。想跟读,去练习