Pcdds
[计]= Private Circuit Digital Data Service,专用电路数字数据业务
🗣️ 情景例句
Rome wasn't build in a day.
伟业非一日建成。
What will it be after the clear weather?
晴天以后天气会怎么样？
The workmen struggled fiercely and one of them lost his temper.
两个工人奋力抗争，其中一个发了火，