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標準釋義：提供中英釋義與例句，尚未加入深度教學內容
bcKK [ˌbiˈsi] ｜ /ˌbiˈsi/
GEPT 中級
B1abbreviation
before Christ: used after a date to show that it was before the birth of Jesus
Construction of the Great Wall of China began in the third century BC.
西元前（縮寫）

延伸練習

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