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单词 echo chamber
释义

WordReference Random House Unabridged Dictionary of American English © 2024
echo cham′ber, 
  1. Sound Reproductiona room or studio with resonant walls for broadcasting or recording echoes or hollow sound effects.
  • 1935–40, American.

Collins Concise English Dictionary © HarperCollins Publishers::
echo chamber n
  1. a room with walls that reflect sound. It is used to make acoustic measurements and as a source of reverberant sound to be mixed with direct sound for recording or broadcasting
    Also called: reverberation chamber
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