Question

impenetrable adj.不能通过的;不能理解的;无动于衷的;顽固的，不接受的; noun:impenetrability~adv:impenetrably~

Accepted Answer

英[ɪmˈpenɪtrəbl]  美[ɪmˈpɛnɪtrəbəl] ADJ-GRADED不能穿过的;刺不进的;透不过的If you describe something such as a barrier or a forest as impenetrable, you mean that it is impossible or very difficult to get through.例：...the Caucasus range, an almost impenetrable barrier between Europe and Asia.高加索山脉,几乎难以穿越的欧亚屏障ADJ-GRADED费解的;难以理解的If you describe something such as a book or a theory as impenetrable, you are emphasizing that it is impossible or very difficult to understand.例：His books are notoriously impenetrable.他的书出了名的晦涩难懂。例：...these impenetrable poems.这些隐晦难懂的诗

单词	impenetrable
音标	英[ɪmˈpenɪtrəbl] 美[ɪmˈpɛnɪtrəbəl]
解释	adj.不能通过的;不能理解的;无动于衷的;顽固的，不接受的;
例句	ADJ-GRADED 不能穿过的;刺不进的;透不过的 If you describe something such as a barrier or a forest as impenetrable, you mean that it is impossible or very difficult to get through. 例：...the Caucasus range, an almost impenetrable barrier between Europe and Asia.高加索山脉,几乎难以穿越的欧亚屏障 ADJ-GRADED 费解的;难以理解的 If you describe something such as a book or a theory as impenetrable, you are emphasizing that it is impossible or very difficult to understand. 例：His books are notoriously impenetrable.他的书出了名的晦涩难懂。例：...these impenetrable poems.这些隐晦难懂的诗
变形	noun:impenetrability~adv:impenetrably~

Impenetrable Adj Graded Describe Barrier Impossible Difficult 英[ɪmˈpenɪtrəbl 美[ɪmˈpɛnɪtrəbəl