Ccsa
[计] 公用控制交换网
🗣️ 情景例句
The village was filled with people--the weather was so nice.
镇上挤满了人--因为天气好的缘故。
Do you have change for a twenty-dollar bill?
你付了一张20美元帐单了吗？
We'll sign two originals, each in Chinese and English language.
我们将要用中文和英语分别签署两份原件。