mindmap root((嘈杂)) din suggests prolonged and deafening clangor or insistent earsplitting metallic sounds: the ~ of a machine shop. （clangor铿锵: a loud, resonant noise巨大低沉的噪音，多指金属或钝器碰撞，如he could hear the clang of distant bells他可以听到远钟的铿锵作响） machine shop机械或修理厂 uproar suggests tumults or wild disorder or often the sound of a multitude noisily or riotously protesting, arguing, or defying: remarks that threw the crowd into an ~. pandemonium suggests the tumultuous din produced when a crowd or group becomes uncontrollably boisterous: ~ erupted as soon as the teacher left the room. hullabaloo suggests great excitement, stormy protest, and an interruption of peace and quiet rather than vociferous turmoil: resubmitted his proposal after the ~ died down. babel stresses the confusing and seemingly meaningless mass of sound that results from a mingling of languages and vocal qualities: the incomprehensible ~ of everyone talking at once. hubbub denotes the confusing mixtures of sounds characteristic of the incessant movement of activities and business: the ~ of city streets. clamor,racket stress the psychological effect of a combination of sounds or any excessively noisy scene and implies annoyance and disturbance: the ~ of pigs demanding food; impossible to hear oneself think amid the ~.