| 释义 |
tertiary period
释义
第三纪：地质年代的一个时期，距今约6600万年前至2300万年前，包括古近纪、中近纪和新近纪三个阶段。
例句
1·The Tertiary Period was separated into division of time that were equal in length.
第三纪被划分为等长的时间单位。
2·Charles Lyell made a good estimate of the Tertiary Period from the fossil record, but his method could not be extended to earlier geological periods.
查尔斯·莱尔根据化石记录对第三纪作出了很好的估计，但他的方法不能扩展到更早的地质时期。
3·The flora origin is not after the Tertiary Period .
起源时间不晚于第三纪或更早一些。
同义词
第三纪
third age
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