Dial exchage
[计] 拨号交换机
🧩 词语组成解析
🗣️ 情景例句
Happiness is a personal choice.
快乐是个人的选择。
I'm single.
我现在单身。
Squeezing through a cleft in the rocks, the pot-holers arrived at an enormous cavern, the size of a huge concert hall.
洞穴探险者从岩石缝里挤身过去，来到一个巨大的洞里，其大小相当于一个音乐厅。