Ccsa
[计] 公用控制交换网
🗣️ 情景例句
It's good to see you so happy.
能看见你如此高兴 ，太好了。
Why didn't you like hard work so much?
为什么你那么不喜欢好好工作？
Can you cover for me on Friday. Tell me how to get there?
星期五能不能请你替我个班。 你能告诉我到那里怎么走吗？