red-eye  
noun uk/ˈred.aɪ/ us/ˈred.aɪ/
  (FLIGHT)      
  [ C ] mainly US informal夜间航班,红眼航班 
a flight taken at night
  We caught the red-eye from LA and got to New York at five this morning. 我们在洛杉矶搭乘夜间航班在今天早上5点到了纽约。 
   (IN PHOTOGRAPH)      
 [ U ](照片中的)红眼 
the red colour that a person's eyes seem to be in some photographs
  a flash which minimizes red-eye 可尽量减少红眼的一种闪光灯