impregnable 뜻 - 영어 사전 및 사용 예
'impregnable'를 사용한 문장 예제
- Arsenal are in an impregnable position at the top of the league.
- The security of our land is founded on the myth of the impregnable fortress.
- Further inland you will find the ancient extinct volcanoes and the impregnable castles of the Auvergne.
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