| 词汇 | BC |
| 释义 | BC 1 ENTRIES FOUND: BC (abbreviation) BC abbreviation or chiefly US B.C. BC abbreviation or chiefly US B.C. Learner's definition of BC 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 550 B.C.公元前550年 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. |
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