资料来源 : pyDict

要塞,堡垒,大本营

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Stronghold \Strong"hold`\, n.
   A fastness; a fort or fortress; fortfield place; a place of
   security.

资料来源 : WordNet®

stronghold
     n : a strongly fortified defensive structure [syn: {fastness}]