| 单词 | echo chamber | 
| 释义 | > as lemmasecho chamber   echo chamber  n. originally U.S. a confined space where sound reverberates; also attributive and figurative. ΘΚΠ the world > physical sensation > hearing and noise > degree, kind, or quality of sound > resonance or sonority > 			[noun]		 > echo chamber or instrument whispering-placea1661 singing glass1669 sound-board1766 sounding-board1766 whispering-gallery1812 reverberation chamber1925 echo room1933 echo chamber1937 1937    Variety Radio Directory 1937–8 341  				Echo chamber, a reverberant room used to add hollow effects and actual echoes. 1953    New Yorker 4 Apr. 6/3  				There's free-wheeling music in the echo-chamber grill. 1955    N.Y. Times 16 Jan.  vi. 26/4  				New York, an echo chamber of squeezed apartment buildings, is even more in need of a honking ban than..Paris. 1958    Punch 22 Jan. 152/1  				I was going to write about echo-chambers, which are currently giving such pleasure to all listeners by piping the broadcast voice into an empty, thirty-foot room and piping it out again with sonorous accretions of overtones. < as lemmas | 
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