Ccsa
[计] 公用控制交换网
🗣️ 情景例句
The gap between the poor and the rich seems to be growing every day.
贫富悬殊好像与日俱增。
It's a long story.
真是一言难尽。
They were not fighting men, and their harp was their passport.
他们不是作战人员，竖琴就是他们的通行证。