Bcsm
abbr. basic call state model 基本呼叫状态模型
🗣️ 情景例句
I have to return this book to the library.
我得把书还回图书馆了。
Thank you for your favour.
谢谢你的爱护。
So where's your bike today?
那么今天您的自行车在哪里呢？