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
Mr. Maxwell was very kind
Maxwell先生很好心
Idleness is the key of beggary, and the root of all evil.
懒惰是行乞的敲门砖，是万恶的根源。
Education is one of the key words of our time.
教育是我们这个时代的关键词之一。