Therefore, you can never escape from inside the event horizon.

逃离视界中心，没有东西能逃离。

The trailing edge of the second pulse, therefore, also ACTS as an event horizon.

因此，第二个脉冲的后缘地带也发挥了视界的作用。

If m is the mass of the sun, the radius of the event horizon is three kilometers.

视界的半径就是，3公里，若m是太阳的三倍重。

If you tell me what m is, I will tell you what the radius of the event horizon is.

我会告诉你们，视界的，半径大小，这里我加快一点。

It's like looking at a mass accelerated past the event horizon of a black hole.

就象在看一个大规模加速通过一个黑洞的视界。