On the edge of the jacket, there is a piece of cloth that gives off light in the dark.

夹克边缘的一块布料可以在黑暗时发光。

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When a current is passed between these electrodes, the polymer gives off light.

当电流通过两个电极时高分子材料便会发光。

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Think about a light bulb; if you apply a current, the filament gets hot and begins to give off light of different colors - red then yellow then blue.

试想下灯泡，如果接通了电流，灯丝会变热继而发出不同颜色的光-从红到黄再到蓝色。

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They were not hot enough -- like stars-- to give off light.

VOA: special.2009.04.29

On day four, The heavenly bodies that give off light by day or night are created.

在第四天，那些在白天或者晚上发光的天体被创造了。

耶鲁公开课 - 旧约导论课程节选

And instead of having the electron giving off energy as a photon, instead now the electron is going to take in energy from light and move up to that higher level.

与电子以光子形式施放能量不同,我们现在要从光中,获得能量到一个更高的能级。

麻省理工公开课 - 化学原理课程节选

Its current 50% discount off light, sweet crude was, until recently, unheard of.

FORBES: Magazine Article

About 60 to 200 miles overhead, the particles bump into the Earth's atmosphere and become electrically "excited" -- throwing off light of various colors, said Prof.

CNN: 'Dancing lights' draw thousands to frozen north

That happens because, provided those electrons that have given off light are quickly pumped back to their excited states, the light bouncing around between the mirrors will stimulate the production of yet more light and a powerful, coherent beam will emerge.

ECONOMIST: Optoelectronics