col·i·se·um /ˌkɑləˈsiəm/
  體育館;競技場
  Col·i·se·um n.  The amphitheater of Vespasian at Rome, the largest in the world. [Written also Colosseum.]
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  Col·os·se·um n.  The amphitheater of Vespasian in Rome. [Also written Coliseum.]
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  coliseum
       n : an oval large stadium with tiers of seats; an arena in which
           contests and spectacles are held [syn: amphitheater, amphitheatre]