A sliver of light showed under the door.

门底下现出一丝亮光。

《牛津词典》

The light was on and the door was open.

灯亮着，门开着。

《柯林斯英汉双解大词典》

That means that our nearest neighbours are perhaps 100 light years away, which is almost next door in astronomical terms.

那意味着我们最近的邻居星球离我们大约有100光年远，从天文学的角度来说，这几乎是一墙之隔。

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What we're talking about here -- the speed of light --is a million times faster, and is opening the door to a complete rethinking of what we mean by, and can do with, photography.

CNN: A camera that can see around corners

But the crash of a Turkish Airlines' DC-10 10 minutes after take-off from Paris in March 1974 put the cargo door problems in a whole new light.

BBC: Dreamliner trouble: A brief history of airliner problems