polished  
adjective uk/ˈpɒl.ɪʃt/ us/ˈpɑː.lɪʃt/
  (CLEAN)      
  磨光的;擦亮的
having been polished
  a highly polished floor 擦得很亮的地板 
   (SKILLED)         
 优雅而又自信的
A polished person has style and confidence.
  He's suave, polished, and charming. 他文雅、自信,富有魅力。 
  完美的,精良的
showing great skill
  The dancers gave a polished performance. 舞蹈演员的表演很精湛。