dog·fight /ˈdɔgˌfaɪt/
 混戰,纏鬥,空戰,狗咬狗(vi.)在空中纏鬥


 dogfight
      n 1: a fiercly disputed contest; "their rancor dated from a
           political dogfight between them"; "a real dogfight for
           third place"; "a prolonged dogfight over their rival
           bids for the contract"
      2: an aerial engagement between fighter planes
      3: a violent fight between dogs (sometimes organized illegally
         for entertainment and gambling)
      v 1: arrange for an illegal dogfight
      2: engage in an aerial battle with another fighter plane