Definition
To gradually reduce the intensity of a picture or sound in a film or recording.
（画面）渐隐；（声音）渐弱
In the final scene, the music fades out gradually, eventually disappearing.
在最后一幕中，音乐逐渐淡出，最终消失。
The director decided to fade out the visuals at the end of the film to add more drama to the conclusion.
导演决定在电影结尾处将画面淡出，为结局增添更多戏剧性。
As he spoke, the background noise faded out, allowing everyone to hear clearly.
当他说话时，背景噪音逐渐消失，让每个人都能听清楚。