The substance is from a far simpler world, but the method of analysis is as current as any I would apply today.
虽然所述内容来自于一个远比现在单纯的世界，但是当年的分析方法和我现在采用的任何方法一样，依然风行世界。
An element is a simple substance that cannot be broken up into anything simpler.
元素是一种单质，它不可能再分成任何更单纯的物质。
An element is a simple substance that cannot be broken up into anything simpler.
元素是一种单质，它不可能再分成任何更单纯的物质。
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