impregnable
adj
英 [ɪm'pregnəb(ə)l] 美 [ɪm'prɛɡnəbl]
基本释义
adj.无法攻取的,要塞坚固的,不受影响的,可以受孕的的
词根词缀
前缀
im-2
not, without
+
后缀
able
capable of being, doing, or undergoing
+
后缀
ible
capable of being, doing, or undergoing
+
后缀
ble
capable of being, doing, or undergoing
im-2 + able + ible + ble = impregnable
网络释义
固若金汤; 铜墙铁壁; 雄关; 无法攻取的
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