单词	prefade
释义	prefade noun pre·​fade ˌprē-ˈfād  variants or pre-fade : a function of an electronic device that allows an operator to observe a video or audio signal prior to fading it in (as on live television or radio) used prefade to check the sound quality —often used before another noun turned on prefade modea prefade circuit Word History First Known Use 1941, in the meaning defined above
随便看	pump-faking pumpability pumpable pumpage pumped pumped out pumped storage pumped up pumpellyite pumper pumper company pumper-ladder pumpernickel pumpernickels pumpers pumpet pumpet ball pumping pumping engine pumping jack pumping of the barometer pumping out pumping up pumpkin pumpkin ash

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