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英语日语
[今日口语] She cannot manage Tuesday.

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这个单词你近期已经查过5次了,小D建议你将它收录到单词本。收录 / 忽略

impregnable [im'pregnəbl]

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a. 无法攻取的,要塞坚固的,难攻陷的,坚定的
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  1. Immune to attack;impregnable.
    固若金汤攻不破的;固若金汤的
  2. an impregnable argument.
    无懈可击的辩论
  3. an impregnable fortress.
    固若金汤的堡垒
 以下网页可能有助于你对本词条的理解:
  1. Penn devised the plan to focus on a limited number of big state primaries, ignoring many smaller states and caucuses, where Obama built what appears to be an impregnable lead in pledged delegates.查看全文
  2. These buildings were constructed using fire-resistive material and therefore practically impregnable. 查看全文
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