Interexchange channel
[计] 内部交换信道
🧩 词语组成解析
[计] 局际电话业务
🗣️ 情景例句
I graduated from Nanjing University.
我从南京大学毕业的。
Paddle your own canoe.
自立更生，自食其力。
The moment he reached the country, he started his search.
他一到达冈比亚，就开始探寻工作。