cid
  頭領;首領
  Cid n.
  1. Chief or commander; in Spanish literature, a title of Ruy Diaz, Count of Bivar, a champion of Christianity and of the old Spanish royalty, in the 11th century.
  2. An epic poem, which celebrates the exploits of the Spanish national hero, Ruy Diaz.
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  CID
       n : the United States Army's principal law enfocement agency
           responsible for the conduct of criminal investigations
           for all levels of the Army anywhere in the world [syn: Criminal
           Investigation Command]