Abcd
abbr. 加快收寄投递系统（Accelerated Business Collection and Delivery）
🗣️ 情景例句
Let's go.
我们走。
All is not gold that glitters.
闪光的东西并不都是黄金。
Most business letters around the world are written in English.
世界上大多数商务信函都是用英语写的。