re·doubt /rɪˈdaʊt/
  多面堡,防守陣地
  Re·doubt n.  Fort. (a) A small, and usually a roughly constructed, fort or outwork of varying shape, commonly erected for a temporary purpose, and without flanking defenses, -- used esp. in fortifying tops of hills and passes, and positions in hostile territory. (b) In permanent works, an outwork placed within another outwork. See F and i in Illust. of Ravelin. [Written also redout.]
  Re·doubt, v. t.  To stand in dread of; to regard with fear; to dread. [R.]
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  redoubt
       n : a forbidding stronghold [syn: sconce]