abbr.公元前(基督教会历法用)

BC stands for Before Christ, indicating a time in history prior to the birth of Jesus.
BC 表示“基督之前”，指的是耶稣诞生前的历史时期。
The Great Wall of China was built over several centuries BC.
中国的长城是在公元前几个世纪建造的。
The ancient civilization of Mesopotamia flourished around 4000 BC.
美索不达米亚的古代文明在公元前4000年左右繁荣昌盛。
The Pyramids of Giza were constructed in the 26th century BC.
吉萨的金字塔建于公元前26世纪。
In BC times, people relied on agriculture for their livelihood.
在那个BC时代，人们依靠农业为生。
The concept of democracy originated in Greece in the 5th century BC.
民主的概念起源于公元前5世纪的希腊。
Julius Caesar was assassinated in 44 BC, marking a significant turning point in Roman history.
屋大维·凯撒在公元前44年被刺杀，这是罗马历史上的一个重要转折点。
The Indus Valley Civilization is known for its advanced urban planning, dating back to 2600 BC.
印度河流域文明以其先进的城市规划而闻名，可追溯到公元前2600年。
The Oracle of Delphi was a famous religious site in ancient Greece, active from around 800 BC.
德尔斐神谕是古希腊著名的宗教场所，大约从公元前800年开始活跃。
The Epic of Gilgamesh, one of the earliest known works of literature, was written around 2100 BC.
《吉尔伽美什史诗》是已知最早的文学作品之一，写于公元前2100年左右。