con·vert·ible /kənˈvɝtəbəl/
  (a.)可改變的,可交換,同意義的有活動篷的汽車
  convertible
  可轉換
  Con·vert·i·ble a.
  1. Capable of being converted; susceptible of change; transmutable; transformable.
     Minerals are not convertible into another species, though of the same genus.   --Harvey.
  2. Capable of being exchanged or interchanged; reciprocal; interchangeable.
     So long as we are in the regions of nature, miraculous and improbable, miraculous and incredible, may be allowed to remain convertible terms.   --Trench.
  ◄ ►
  convertible
       adj 1: capable of being exchanged for or replaced by something of
              equal value; "convertible securities" [syn: exchangeable]
              [ant: inconvertible]
       2: designed to be changed from one use or form to another; "a
          convertible sofa"; "a convertible coupe"
       3: capable of being changed in substance as if by alchemy; "is
          lead really transmutable into gold?"; "ideas translatable
          into reality" [syn: transformable, translatable, transmutable]
       n 1: a car that has top that can be folded or removed
       2: a corporate security (usually bonds or preferred stock) that
          can be exchanged for another form of security (usually
          common stock) [syn: convertible security]
       3: a sofa that can be converted into a bed [syn: sofa bed]