Ccsa
[计] 公用控制交换网
🗣️ 情景例句
You're going to be OK.
你不会有问题了。
He's a composer of sacred music.I like his music a lot.
他是宗教音乐作曲家，我很喜欢他的音乐。
but hauling it out of the water proved to be a serious problem.
可是把盘子捞出却是一个很大的难题。