defenses

例句:

• You say the barbarians have broken through our defenses?
  来自NEWYORKER
• But penetrating a site's defenses can be tough.
  来自WSJ
• He ruminated on his defenses before he should accost her father.
  他在与她父亲搭话前,仔细地考虑着他的防范措施.
  
• The beach defenses were softened up before the landing craft went in.
  在登陆艇驶入以前,海滩防御工事已遭到削弱.
  
• I reiterated that defenses in the southern sector should be perfected.
  我一再说明南部的防御应力求稳定.
  
• Yes, but you've lost one of your defenses.
  来自SA