| 单词 | compact disk | 
| 释义 | compact disk [`käm´pakt `disk]  COMMUNICATIONS A nonmagnetic disk, usually 43/4 inches (12 centimeters) in diameter, used for audio or video recording or for data storage; information is recorded using a laser beam to burn microscopic pits into the surface and is accessed by means of a lower-power laser to sense the presence or absence of pits.  | 
	
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