vain 

  1. 形容詞
愛虛榮的, 愛慕虛榮的
炫耀的
自負的
徒然的, 無益的
空虛的, 無意義的
無價值的
in vain:
徒勞無益的
徒勞的
白費功夫的

    同義字詞
assured,bigheaded,complacent,conceited,consequential,egoistic,egoistical,egotistic,egotistical,important,overweening,pompous,prideful,proud,self-conceited,self-important,self-opinionated,self-satisfied,smug,stuck-up,swellheaded,vainglorious
abortive,barren,bootless,empty,fruitless,futile,ineffective,ineffectual,inefficacious,otiose,profitless,unavailing,unproductive,unprofitable,unsuccessful,useless
empty,junky,no-good,null,valueless,worthless

  2. 副詞
in vain:
白白地
白白
徒勞無益地
徒勞地
白費功夫地
白費力氣地
枉然地
徒然地
無結果地

    
                        
    3. 
                                                                        
  3. 

    動詞片語連結
take ...(人等)'s name in vain:
濫用...的名字

    

    
                        
    4. 
                                            

                

            

            
            

                

                
例句

                

                    
    
                                                    
  1. 
                                But a truce to vain regrets.                            
    2. 
                                                    
  2. 
                                Well , at least he wasn't vain .                            
    3. 
                                                    
  3. 
                                Then will I not have lived in vain .                            
    4. 
                                                    
  4. 
                                The young soldier's hopes were vain .                            
    5. 
                                                    
  5. 
                                Please don't let my loss be in vain .                            
    6.