Spectroscopy is basically the study of spectra and spectral lines of light, and specifically for us, the light from stars.

光谱学基本上是一种研究光谱和光谱线的学科，特别对我们来说，是研究恒星发出的光。

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I am sure you all know from physics class about how light moves in microscopic ways and that we can only see light when the wavelength of that light is in a specific range.

我相信，你们在物理课上都学过光是如何以微观的方式运动的，以及只有在光的波长在特定的范围内时我们才能看到光这一事实。

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When a plant absorbs light for performing photosynthesis, it only absorbs some wavelengths of light and reflects others.

当植物吸收光进行光合作用时，它只吸收某些波长的光，并反射其他波长的光。

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The room has a feeling of solidity and permanence, but it also is a celebration of light and airiness.

VOA: special.2010.01.27

What do we make of these allusions to divine colleagues or subordinates in light of Kaufman's claims regarding biblical monotheism?

参照考夫曼的一神论主张，我们如何理解这些暗示？,他们的地位等同于，还是次于上帝？

耶鲁公开课 - 旧约导论课程节选

And out of that came the recognition that Thompson's plum pudding model is not sustainable in the light of this evidence.

从中我们得出,汤姆生的枣糕布丁原子模型,是不合理的。

麻省理工公开课 - 固态化学导论课程节选

And so I'm wondering, in light of that and in light of past precedent, have you examined what might be appropriate pressure and inappropriate pressure?

WHITEHOUSE: Press Briefing

Do you have any plans to communicate with your Asian allies such as Japan in light of the -- in light of G8 foreign ministers meeting in Paris?

WHITEHOUSE: Press Briefing

Shannon is arecipient of the Daily Point of Light Award, presented by Points of Light.

WHITEHOUSE: Engage and Connect