| 单词 | K/T boundary |
| 释义 | Definition of K/T boundary in English:K/T boundaryproper noun
Origin1980s: K/T, from the symbols for Cretaceous and Tertiary. Definition of K/T boundary in US English:K/T boundaryproper noun
Origin1980s: K/T, from the symbols for Cretaceous and Tertiary. |
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