Bce
abbr. 化学工程学士（Bachelor of Chemical Engineering ）；土木工程学士（Bachelor of Civil Engineering）；公元前（ before common era）
🗣️ 情景例句
These are wonderful--
这些好得很--
Did you go to the park yesterday?
你昨天去公园了吗？
You must weigh it carefully.
你必须仔细地称一称重量。