cruis·er /ˈkruzɚ/
  巡洋艦,巡航飛機,警察巡邏車
  Cruis·er n. One who, or a vessel that, cruises; Specif.: Nav. A man-of-war less heavily armed and armored than a battle ship, having great speed, and generally of from two thousand to twelve thousand tons displacement.
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  cruiser
       n 1: a car in which policemen cruise the streets; equipped with
            radiotelephonic communications to headquarters [syn: police
            cruiser, patrol car, police car, prowl car, squad
            car]
       2: a large fast warship; smaller than a battleship and larger
          than a destroyer
       3: a large motorboat that has a cabin and plumbing and other
          conveniences necessary for living on board [syn: cabin
          cruiser, pleasure boat, pleasure craft]