When you analyze this light, you can figure out their distance from the Earth, and identify what they are made of, determine their chemical composition.

当你分析这些光的时候，你可以计算出它们与地球的距离，并确定它们由什么构成，查明它们的化学成分。

youdao

We concluded that some objects sink or float depending on what they are made of.

我们的结论是：物体下沉或浮取决于他们的材质。

youdao

He is a demanding coach who wants the best out of each player. Every workout is a new opportunity for them to show what they are made of.

他要求严格，希望每个球员做到最好，他们训练时表现出来的东西将会作为衡量他们能力的指标。

youdao

Clearly, if I did nothing more, but I took every car, doubled its fuel economy, its emissions would go to 50% of what they are now, no other changes being made.

显然，如果我什么也不做，但是我把没量车的汽油价加倍，汽车废气排放量就会是现在的一半了，别的不会有什么改变。

麻省理工公开课 - 固态化学导论课程节选

So what I want to point out about them is that they're made up of two nodes, and what you can see is that nodes are shown in different colors here and those are different phases.

关于它们我要指出的是,它们有两个节点，你们可以看到在这里,这些节点的颜色不同，它们的相位不一样。

麻省理工公开课 - 化学原理课程节选

They are made of organic matter:the same rules, the same laws of chemistry that apply to what makes this laser glow green apply to what makes these photodetectors work.

而是由有机物制作的，同样的规律，它与应用于让激光的光芒变绿,以及使这些光电探测器工作,的化学是一样的规律。

麻省理工公开课 - 固态化学导论课程节选

Without constantly pushing my senior colleagues to formulate decisions, I would never be able to learn and know what they are made of.

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We have this confidence because we are fortunate enough to have worked with each of them in different circumstances, and we know what they are made of.

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Many commentators are arguing that what is needed to tackle the problem are not simply measures such as those outlined above, but rather a quantum-shift in the technology of air travel, with a radical re-think not only in how planes are designed, but also what they are actually made of.

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