impregnability的翻译，读音
英/ ɪmpreɡnəˈbɪlɪti /
美/ ɪmpreɡnəˈbɪləti /
释义：
n.攻不破；不受影响
例句
It was the enemys boast of impregnability that caused their own defeat. 敌人自我吹嘘战无不胜,这最终导致了他们自己的失败. 。
It was the enemys boast of impregnability that caused their own defeat. 敌人自我吹嘘战无不胜,这最终导致了他们自己的失败. 。