Cccs
abbr. command control and communication system 指挥控制和通讯系统
🗣️ 情景例句
I am sorry. I am not free right now.
对不起，我现在很忙。
He should see the doctor.
他应该去看医生。
Not all sounds made by animals serve as language.
动物发出的声音不都是用作语言交际。