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
Where's the ticket counter?
售票处在哪儿？
His controversial speech caused a wild discussion.
他们有争议的讲话引起了一场广泛的讨论。
Predicting the future is notoriously difficult.
众所周知，预测未来是非常困难的。