before christ
01
公元前
marking the years before Christ's supposed birth
例子
The ancient civilization of Mesopotamia flourished around 3000 BC.
美索不达米亚的古代文明在公元前3000年左右繁荣起来。
The construction of the Great Pyramid of Giza began around 2580 BC.
吉萨大金字塔的建造始于约公元前2580年。
