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      首頁英語詞典countdowncountdown英英釋意
      
                    
      
	
      countdown
      
	
      英 ['ka?ntda?n]
美['ka?ntda?n]

      


	    
      
	
        
    
      • n. 倒數(shù)計秒
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      英英釋意
      
	
      
	
      1. counting backward from an arbitrary number to indicate the time remaining before some event (such as launching a space vehicle)