bc
US /biːˈsiː/
UK /biːˈsiː/
縮寫
公元前
before Christ (used after a date to indicate that it was a specified number of years before the beginning of the Christian era)
範例:
•
The Roman Empire was founded in 27 BC.
羅馬帝國成立於公元前27年。
•
Many ancient civilizations flourished thousands of years BC.
許多古代文明在公元前數千年繁榮發展。