Pcdds
[计]= Private Circuit Digital Data Service,专用电路数字数据业务
🗣️ 情景例句
That's right.
对了。
I'd like to make an overseas call to Taibei, Taiwan by collect call.
我要打对方付费的电话到台湾的台北。
It's all about space and satellites.
全是有关宇宙和卫星的。