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
Twenty-one inches.
二十一英尺。
You ought to have that coat cleaned and pressed.
你应该把那件大衣清洗并且压一下。
At the time of his death, one person praised him as follows: Future generations, it may be, will hardly believe that such a person as this walked upon this earth.
未来的几代人有可能难以相信，在这个世间曾经有这样的一个人行走过。"