mesozoic era

常见例句

双语例句

• 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。
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