然而，如果两者出现在视界的边缘，粒子或者黑洞都可能穿过视界再也不会来。
If, however, the pair appears on the edge of an event horizon, either particle or hole may wander across the horizon, never to return.
在柯西视界上，因为产生离心作用，粒子速度减慢，回到光速。
At this Cauchy horizon, because of the centrifugal forces involved, particles slow down back to the speed of light.
来自外面这个区域的粒子能落进去，越过活动视界，而将永远不能够离开。
Particles from outside this region can fall in, cross the event horizon, and will never be able to leave.
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