n.刺耳的声音；杂音
The drivers behind him honked, and the cacophony grew louder. 后面的司机还在按喇叭，且那刺耳的声音越来越大。
From its cacophony of sound, the room has suddenly become very still. 本来众声嘈杂的屋子里，突然变得非常肃静。
