ex·cel·lence /ˈɛks(ə)lən(t)s/
  優秀,卓越,優點
  Ex·cel·lence n.
  1. The quality of being excellent; state of possessing good qualities in an eminent degree; exalted merit; superiority in virtue.
  Consider first that great
  Or bright infers not excellence.   --Milton.
  2. An excellent or valuable quality; that by which any one excels or is eminent; a virtue.
     With every excellence refined.   --Beattie.
  3. A title of honor or respect; -- more common in the form excellency.
  I do greet your excellence
  With letters of commission from the king.   --Shak.
  Syn: -- Superiority; preëminence; perfection; worth; goodness; purity; greatness.
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  excellence
       n 1: the quality of excelling; possessing good qualities in high
            degree
       2: something in which something or some one excels; "the use of
          herbs is one of the excellences of French cuisine"