公元前

例句：

1. 1. The ruins of the ancient city are still visible in the park.
   古城市的遗迹仍然在公园里可见。
2. 2.Many ancient cultures have influenced modern art.
   许多古代文化影响了现代艺术。
3. 3. The ancient temple was built over 2,000 years ago.
   这座古老的寺庙建于2000多年前。