fortification

fortification
[ˌfɔːtɪfɪˈkeɪʃ(ə)n]
noun
  1. (常作 fortifications)a defensive wall or other reinforcement built to strengthen a place against attack
    防御工事;防御城墙
    ■[mass noun]the action of fortifying or process of being fortified
    筑城,筑垒;设防
    the fortification of the frontiers.
    边境设防。
语源
  1. late Middle English: via French from late Latin fortificatio(n-), from fortificare (see fortify)
英语宝典
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