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      首頁英語詞典headroomheadroom英英釋意
      
                    
      
	
      headroom
      
	
      英 ['hedru?m; -r?m]
美['h?drum]

      


	    
      
	
        
    
      • n. 凈空；凈空高度；頭上空間
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      英英釋意
      
	
      
	
      1. vertical space available to allow easy passage under something
      

      2. the capacity of a system to reproduce loud sounds without distortion