In the past, a citadel was a strong building in or near a city, where people could shelter for safety.
例句
The citadel at Besançon towered above the river.贝桑松的城堡高高地耸立在河边。
N-COUNT
(某种生活方式的)庇护所
If you describe a system or organization as a citadel of a particular way of life, usually one you disapprove of, you mean that it is powerful and effective in defending that way of life.
例句
The business is no longer regarded as a citadel of commerce.该行业不再被视为贸易的堡垒。
英汉词典释义
n.
城堡,堡垒
The citadel was solid.城堡是坚固的。
英英词典释义
Noun
1. a stronghold into which people could go for shelter during a battle