impassibility

例句：

1. 1. The road was impassible due to the heavy snowfall.
   由于大雪，道路无法通行。
2. 2. The scientist discovered an impassibility in the material that made it resistant to fire.
   科学家发现这种材料具有抗火性，是因为它本身是不可通过的。
3. 3. The mountain range is impassible to human beings without proper equipment.
   在没有适当装备的情况下，人类无法穿越这个山脉。