作为额外的变量参照，受试者被要求在不同的时间内到达布道的地点，因此他们当中的一些人可能在路上会显得匆忙。

As an extra twist, subjects were given different times that they had to deliver the sermon so that some would be in a hurry and others not.

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这样，他们可以恰好在我们要求的时间到达。

Then they arrived just when we wanted them.

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可是对站在飞船之外、正在观看飞船运行的人们来说，这个车头灯并没有点亮：车头灯所发出的光到达观察者需要无穷大的时间，因为要求车头灯所发出的光束的速度超过以光速运行的飞船是不可能的。

For someone standing outside watching the ship fly by, the headlights do not appear to turn on: light comes out but it takes an eternity for the beams to get ahead of the spaceship.

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