CA
  計算機代數
  Ca
       n 1: a white metallic element that burns with a brilliant light;
            the fifth most abundant element in the earth's crust; an
            important component of most plants and animals [syn: calcium,
             atomic number 20]
       2: a state in the western United States on the Pacific; the 3rd
          largest state; known for earthquakes [syn: California, Golden
          State, Calif.]