B.c.e.
abbr. 化学工程学士（Bachelor of Chemical Engineering）；公元前（Before the Common Era）
🗣️ 情景例句
Here are the samples for your examination.
这里是样品，请查看。
You can't take it back!
说话算话！
Because of this, they were known as 'prizefighters'.
因此，他们被称作“职业拳击手”。