air alert

• n. 空袭警报

英英释义

Noun:

1. the time period during which military and civilian agencies are prepared for an enemy air attack

2. the condition in which combat aircraft are airborne and ready for an operation;

   "aircraft in the Mideast are on air alert"
   

3. the warning signal that begins a period of preparation for an enemy air attack

例句

用作名词 (n.)

1. One should not run about aimlessly during an alert.
   空袭警报期间不可到处乱跑。
2. An air raid warning stridently interrupted his thoughts.
   刺耳的空袭警报声打断了他的沉思。