B-c
abbr. 公元前（Before Christ）
🗣️ 情景例句
Fair enough.
很公平。
Money spent on the brain is never spent in vain.
智力投资，决非虚掷。
The stream wound its way across the field and then flowed right under their tent!
那小溪弯弯曲曲穿过田野，然后正好从他们的帐篷底下流过去。