dogfight        
noun [ C ] uk/ˈdɒɡ.faɪt/ us/ˈdɑːɡ.faɪt/
 (两架战斗机之间的)空中格斗,激战
a fight between two military aircraft in which they fly very fast and very close to each other
  斗狗(通常为非法性娱乐)
a fight between dogs, usually organized as an illegal entertainment