line of defence

英 美
  • 防线
  • defence n.防御;答辩;防务
  • line n.线;界线;皱纹;路线;航线;行;台词;行业;绳子;家族v.排队;画线;加衬里
  • of prep.关于;...的(表所属);出身于;由于
Noun:
  1. any organization whose responsibility it is to defend against something;

    "police are the major line of defense against crime"

  2. defensive structure consisting of a barrier that can be employed for defense against attack