The Tertiary period
01
第三纪, 第三时期
a division of earth's geological time that began about 66 million years ago and lasted until about 2.6 million years ago
语法信息
有生性状态
抽象
形态构成
复合词
可数
复数形式
tertiary periods
专有
例子
During the Tertiary Period, Earth's climate gradually cooled, leading to the formation of ice sheets.
在第三纪期间,地球的气候逐渐变冷,导致冰盖的形成。



























