citadel [ˈsɪtədəl]
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基本释义
n.城堡;堡垒;避难所
英英释义
a strong castle in or near a city , where people can shelter from danger , especially during a war
参考例句
The citadel was solid. 城堡是坚固的。
This citadel is built on high ground for protecting the city. 这座城堡建于高处是为保护城市。
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