短語(yǔ)詞組短語(yǔ)Impregnable force 金湯力;金impregnable pass 雄關(guān)Impregnable Fort 無(wú)堅(jiān)不摧impregnable bulwark 堅(jiān)不可摧的力量或防御物impregnable a 攻不破的impregnable E 征服不了的Solid Impregnable 固金湯Impregnable Fortress 鐵壁之砦;銅墻鐵壁;金城湯池的略語(yǔ)impregnable quadrilateral 堅(jiān)不可摧的四邊形 返回 impregnable