abbr. 公元前(=Before Christ)
BC/B.C. 选择性必修1000 全国卷频次:0
The Olympic Games, first played in 776 B.C., did not include women players until 1912.
BC Clouds 流动的云（插件名）
s l BC 顺时针
BC Between Centers 中心距
s esy s BC 像BC一样容易
s BC 前0年代
BC CONDIMENTS 地区; 区域; 美国买家;
BC PROBER 铍铜针
Fibrolane BC 菲帛罗纶; 菲帛罗纶BC酪蛋白短纤维;
Calculus BC 微积分BC; 真题及答案; 微积分;
BC Composite 合成
BC (BrE) (US B.C.) / 7bi: 5si: /
before Christ (used in the Christian calendar to show a particular number of years before the year when Christ is believed to have been born)
in (the year) 2000 BC
在公元前 2000 年
the third century BC
⇨ compare AD , AH , BCE , CE
(before Christ) used after a date to show that it was before the birth of Christ 公元前 → AD
The Great Pyramid dates from around 2600 BC.
1.公元前 You use BC in dates to indicate a number of years or centuries before the year in which Jesus Christ is believed to have been born.
The brooch dates back to the fourth century BC.
or chiefly US B.C.
before Christ公元前（耶稣基督诞生前的年份）— used to refer to the years that came before the birth of Jesus Christ
in the fifth century B.C. [=between the years 499 and 400 B.C.] 在公元前5世纪
— compare a.d., b.c.e., c.e.