Mesozoic era

例句：

1. 1.The Mesozoic era was atime of great scientific discoveries and advancements.
   中生代时期是科学发现和进步的黄金时代。
2. 2. The Mesozoic era isoften associated with the rise ofdinosaurs and theevolution of mammals.
   中生代时期常与恐龙的崛起和哺乳动物的进化联系在一起。
3. 3. The Mesozoicera is also known for its rich fossilrecord, which has helped scientists understand theEarth's history.
   中生代时期以其丰富的化石记录而闻名，这帮助科学家理解了地球的历史。