sally port

短语

突破口; 暗门

词形变化

sally ports 复数 sally ports

别名

sallyport

释义与例句

n.
  1. 1.

    An opening into or entry to a fortification, usually arched, to enable a sally; a postern.

  2. 2.

    An entryway controlled by two doors or gates, each of which must be closed before the other can open.