你必须找出那些颜料里有什么，了解它们的组成，这需要实验室的工作——真正的探测性工作——也就是光谱学。
You've got to find out what's in those pigments, learn their composition, and that requires lab work—detective work really—in a word, Spectroscopy.
你是由无生命的化学物质组成的；那么，又是什么使你有了生命呢？
You are made up of lifeless chemicals; what makes you alive?
当被问到什么组成一个家庭时，绝大部分的美国人同意一对已婚夫妇，有或没有孩子都符合家庭的描述。
When asked what constitutes a family, the vast majority of Americans agree that a married couple, with or without children, fits that description.
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