B-c
abbr. 公元前（Before Christ）
🗣️ 情景例句
You go ahead with the formalities. I'll see to the heavy luggage.
您先去办手续，我来帮您照看大件行李。
You have your point of view,and I have mine.
你有你的观点，我有我的。
I am so sorry about this.
对此我非常抱歉（遗憾）。