One heavy blow to the chin and the challenger went out like a light.

下巴挨了一重拳以后，挑战者立即被打得不省人事了。

When she got home, her husband was out like a light and snoring loudly.

当她回到家时，她的丈夫已经睡得很香，还打着响亮的呼噜。

After the sustained effort of the day he lay down on the bed and went out like a light.

劳累了一整天之后，他往床上一躺，就昏昏入睡了。

"All of a sudden, it would stop and go back like this," said Bryan Fains, using his finger to point out the direction of the blue light in the sky.

布赖恩·法因斯(Bryan Fains)说：“突然之间，它会停止下来，回到原状。”他用手指了一下天空中蓝光移动的方向。

When you stare directly at any bright light, like a television screen, it tells your brain that it is still light out.

当你直接盯着任何像电视机屏幕那样的亮光时，亮光会告知你的大脑说它仍在运作。