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      tighten
      
	
      英 ['ta?t(?)n]
美['ta?tn]

      


	    
      
	
        
    
      • vt. 變緊；使變緊
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      • vi. 繃緊；變緊
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      英英釋意
      
	
      
	
      1. make tight or tighter;
      "Tighten the wire"
      

      2. become tight or tighter;
      "The rope tightened"
      

      3. restrict;
      "Tighten the rules"
      "stiffen the regulations"
      

      4. narrow or limit;
      "reduce the influx of foreigners"