Examples
gōng yuán公元qián前qī七qiān千nián年nà那duàn段shí jiān时间fā shēng发生le了hěn很duō多zhòng yào重要de的lì shǐ历史shì jiàn事件。
公元前七千年那段时间发生了很多重要的历史事件。
Many important historical events took place 7000 years B.C.
凯尔特人在公元前600年首先到来。
First came the Celts in 600 B.C.
普遍认为佛教公元六七年在东汉明帝的统治时先来中国。
It is generally believed that Buddhism first came to China in 67 A.D. during the reign of Emperor Mingdi of the Eastern Han Dynasty.