airway  
noun [ C ] uk/ˈeə.weɪ/ us/ˈer.weɪ/
  (IN BODY)     
  anatomy specialized(肺的)气道,气管 
the passage through the mouth and throat that carries air to the lungs
   (ROUTE)      
 飞行航线
a route flown by aircraft
  It was claimed the fighter jet's interception took place inside an international airway. 据称,这架战斗机是在国际航线内受到拦截的。