B-c
abbr. 公元前（Before Christ）
🗣️ 情景例句
Please have …call me back. My name is… and my number is …
请让……给我回电话。 我的名字是……我的电话号码是……
When I present my views on the competitive products, I will refer to the patent situation.
专利的情况会在说明竞争产品时一并提出。
But even when such refinements are not available, there is plenty to keep you occupied.
即使没有这些消遣条件，也总是有事可做。