impenetrably
adv. 不能通过地; 不能穿过地; 无法通过地; 冥顽不化地
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.
...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
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.
His books are notoriously impenetrable.
他的书出了名的晦涩难懂。
...these impenetrable poems.
这些隐晦难懂的诗