1. 名詞
   不可數名詞: 虛榮, 愛慕虛榮
   徒勞, 徒然
   無益
   自負
   

   同義字詞
   bighead,complacence,complacency,conceit,conceitedness,ego,egotism,pomposity,pompousness,pride,pridefulness,self-admiration,self-conceit,self-esteem,self-glory,self-importance,self-love,self-satisfaction,smugness,swelled head,vaingloriousness,vainglory,vanity
   

例句

1. O the vainness , and the frailties, and the foolishness of men!
2. Three to four smartphones, vainness kit, accessories, notebook computers, recognize it, the bag has it.