Their jargon is impenetrable to an outsider.他们的行话外人听不懂。I find his style somewhat impenetrable.我发现他的行为方式令人颇为费解.The language of this document would be impenetrable to anyone except a specialist.除了专家,其他任何人都看不懂这份文件....
The language of this document would be impenetrable to anyone except a specialist.除了专家,其他任何人都看不懂这份文件....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His books are notoriousl...