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      2. 
		
		
      
			
			
      
				
			
      
			
			
		
      
    
      
        
      
            
      
                
                    
      
	
      lifetime
      
	
      英 ['la?fta?m]
美['la?fta?m]

      


	    
      
	
        
    
      • n. 一生；壽命；終生；使用期
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      • adj. 一生的；終身的
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      英英釋意
      
	
      
	
      1. the period during which something is functional (as between birth and death);
      "the battery had a short life"
      "he lived a long and happy life"