mesozoic era
常见例句
- Mammals arose from a fairly primitive reptile in the mesozoic era .
哺乳类起源于中生代宛若原始的爬虫类。 - The rift development slowly halted some 250 to 245 million years ago, around the beginning of the Mesozoic Era.
这些裂缝的活动在大约2.5-2.45亿年前,即中生代初期逐渐停止了。 - The prints are believed to have been made during the Cretaceous period of the Mesozoic Era, Kim said in a statement.
这些足迹被认为是在中生代白垩纪时期由当时鸟类留下的。 返回 mesozoic era