Biochron
生物年代, 较短时期的化石, 生物时
🗣️ 情景例句
Yep.
是的。
Fishing is often frustrating.
钓鱼常常会遭到挫败。
The Moon is likely to become the industrial hub of the Solar System,
月球很可能成为太阳系的工业中心。