adj. 不能通过的;不能理解的;无动于衷的;顽固的,不接受的
网络 不能穿透的; 费解的; 难以渗透的
His philosophical work is notoriously impenetrable.
他的哲学著作是出了名地令人费解。
Their jargon is impenetrable to an outsider.
他们的行话外人听不懂。
No system is impenetrable, and none can promise to eliminate the worst case completely.
没有哪个系统是不可攻破的,也没有哪个系统能够保证完全杜绝最坏的情况发生。
On the other side of the rise, an endless impenetrable thicket of poison oak and coyote brush hides quail and other members of its guild.
在另一边,则生活着无边浓密的毒橡林和藏着鹌鹑的郊狼灌木丛以及其他成员。
With much of the built-up landscape impenetrable by water, even gentle rain runs off almost immediately from rooftops, streets, and parking lots.
由于很多建筑景观都不被水穿透,即使是温和的雨水也会立刻从屋顶、街道和停车场流下。