n.城堡；要塞

Here was a citadel in the Second World War. 在二戰(zhàn)中，這兒是一處避難所。

This citadel is built on high ground for protecting the city. 這座城堡建于高處是為保護城市。

He made a citadel of personal excellence. 他具備人的各種美德。

They once were icons of integrity, citadels of civilization, bastions of benevolence. 大學(xué)曾經(jīng)是正直的象征，文明的堡壘，仁愛的捍衛(wèi)者陣地。