| 释义 |
bc/ˌbi: ˈsi: ||; ˌbi ˈsi/abbr before christ; used in dates to show the number of years before the time when christians believe jesus christ was born 公元前；纪元前: ◇300 bc 公元前300年 ☞look at ad. 参看 ad。 bc /ˏbi `si; ˌbiː ˈsiː/advused after a date to show that it was before the birth of christ 公元前:◇the great pyramid dates from around 2600 bc. 大金字塔建于公元前 2,600 年左右。→ compare 比较 ad |