我能给你的最简单的定义是光谱学是研究物质和光之间相互作用的学科。

The simplest definition I can give you is that Spectroscopy is the study of the interaction between matter and light.

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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。

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

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林教授是纳米结构光子学的专家和光子晶体领域的先锋人物，他说这一新的涂层材料可以运用于几乎所有的光伏材料上。

Lin, an expert in nanostructure photonics and a pioneer in the field of photonic crystals, says that the new coating could be applied to just about any photovoltaic material.

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He expressed his will that there be light, and there was light And that's very different from many Ancient Near Eastern cosmogonies in which there's always a sexual principal at work in creation.

他表达意愿希望有光，于是便有了光,这与古代近东的宇庙学解释有很大出入,在其中，创世过程中有性的因素。

耶鲁公开课 - 旧约导论课程节选

If you just watch me, you're going to learn nothing.

光看我做,你们什么都学不到

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