Pbx
[计] 专用小型交换机
🗣️ 情景例句
Goodbye, come again soon.
再见，下次再来。
I will be very glad when I receive the letter.
如能接到你的来信，我将会非常高兴。
The children were running to move the bag of rice when they heard the sound of a motorbike.
孩子们跑去搬那包大米，这时他们听到摩托车的声音。