the Cambrian

• 寒武纪

the Cambrian的用法和样例：

例句

1. This is the first time in the study and mapping of the Cambrian in South China.
   这种定量的岩相古地理图在中国南方寒武纪还是首次出现。
2. Internal genetic factors were also crucial in the Cambrian Explosion.
   内部遗传因素是还关键的在寒武纪爆炸。