| 单词 | impregnable |
| 释义 | impregnable /im'pregnsbl; im'pregnabl/ adj that cannot be overcome or taken by force; able to resist all attacks: 不能克服的; 不能以暴力取得的; 攻不破的： an ~ fortress; 繁固的堡垒; ~ defences/ arguments. 破的防禁工事(驳不倒的论点) oim-preg-nably /-abli; -abli/ adv impregnabi|.ity /im-.pregns'bilsll; /imprcgna'bilati/ n |
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