vir·tu·os·i·ty /-ˈɑsəti/
  美術興趣,愛好古董,鑑定眼光
  Vir·tu·os·i·ty n.
  1. The quality or state of being a virtuoso; in a bad sense, the character of one in whom mere artistic feeling or aesthetic cultivation takes the place of religious character; sentimentalism.
     This famous passage . . . over which the virtuosity of modern times, rejoicing in evil, has hung so fondly.   --C. Kingsley.
  2. Virtuosos, collectively.
  3. An art or study affected by virtuosos.
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  virtuosity
       n : technical skill or fluency or style exhibited by a virtuoso