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
I need to be in the top percentage of my class to study abroad.
为出国留学，我的成绩必须在班里名列前茅。
I'm the youngest.
我最年轻
Mr.Sawyer usually reads his newspaper, but sometimes he and his wife watch television.
索耶先生总是读报纸，但有时和他的妻子一起看电视。