The light was beginning to drain from a violet sky.

光线正开始从紫罗兰色的天空中渐渐消失。

《柯林斯英汉双解大词典》

The blue of the sky paled to a light grey.

天空的蓝色渐变成了浅灰色。

《牛津词典》

Bad lighting design allows artificial light to shine outward and upward into the sky.

糟糕的照明设计使人造光向外向上照射到天空。

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I knew the sky was black because all the heat, which meant light to me, had died out of the air.

VOA: special.2009.11.15

She set the cameras so they would remain open to the light of the night sky.

VOA: special.2009.05.17

With the London Philharmonic providing the audio backdrop, lasers are to light up the night sky, beaming across town to touch several landmarks: the London Eye, the Gherkin, Tower Bridge.

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Tholen told CNN there was about a half-hour between when the asteroid got high enough in the sky for the telescope to point at it and before the sky became too light to observe it.

CNN: Phew! Asteroid to miss Earth in 2040, NASA says

The observatory, which is named after the physicist who discovered the showers caused by cosmic rays, has 1, 600 detectors on the ground to record the arrival of such cascades and 24 telescopes pointing at the sky to locate the flashes of light produced by the collisions that create them.

ECONOMIST: Cosmic rays: They came from outer space | The