air defense

英 美
  • n. 防空
CET4 TEM4 IELTS 考 研 TOEFL CET6
使用频率:
星级词汇:
  • air n.空气;天空;空中;感觉;神态;曲调;装腔作势v.晾干;使通风;广播
Noun:
  1. defensive measures designed to destroy attacking enemy aircraft or missiles or to nullify their effectiveness

    用作名词 (n.)
    1. Here in Haifa, air sirens continue to sound.
      防空警报仍未在海法撤销。
    2. All lights are blacked out during air defence exercises.
      在防空演习时对一切灯火都实行管制。