Instead, the WHO said, names should be descriptive terms based on general symptoms, or signs of sickness, caused by the disease.

相反，世卫组织表示，名称应该是基于这种疾病引起的一般症状的描述性术语。

Genius and giftedness are relative descriptive terms of no real substance.

天才和天赋是相对的描述性术语，没有实质内容。

So, as a descriptive term, " living fossil" doesn't seem very useful, at least on smaller geologic time scales.

因此，作为一个描述性术语， “活化石” 似乎并不是很有用，至少在较小的地质时间尺度上是这样。

What are the due descriptive terms for a state of " civilization" in which such a thing as this is possible?

对于可能发生这种事情的“文明”状态，适当的描述性术语是什么？