supererogatory 

  1. 形容詞
額外的, 超出職務的

    
                        
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例句

                

                    
    
                                                    
  1. 
                                In a way this was, or ought to have been, supererogatory .                            
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  2. 
                                A supererogatory act is one that is good but not morally required.                            
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  3. 
                                We are told that this servant approaches God by supererogatory acts.                            
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                                Supererogatory acts are permissible acts that are especially expedient.                            
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  5. 
                                If an action is supererogatory , then my performance of it is praiseworthy.                            
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