feedback /ˈfiːdˌbæk/ noun Learner's definition of FEEDBACK
[noncount]
1
: helpful information or criticism that is given to someone to say what can be done to improve a performance, product, etc.反馈的信息(或意见) 2 technical
a : something (such as information or electricity) that is returned to a machine, system, or process(返回机器、系统或者程序的)返回信息,返回电流 b : an annoying and unwanted sound caused by signals being returned to an electronic sound system(信号返回电子音响系统所致的)噪声