heir·loom /ˈærˌlum, ˈɛr-/
  傳家寶,相傳動產
  Heir·loom n.  Any furniture, movable, or personal chattel, which by law or special custom descends to the heir along with the inheritance; any piece of personal property that has been in a family for several generations.
  Woe to him whose daring hand profanes
  The honored heirlooms of his ancestors.   --Moir.
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  heirloom
       n 1: (law) any property that is considered by law or custom as
            inseparable from an inheritance is inherited with that
            inheritance
       2: something that has been in a family for generations