Fastnets
(fastnet 的复数) abbr. fully automated switched telecommunications network 全自动化交换通信网（络）
🗣️ 情景例句
Do? I don't know.
读什么 ？我不知道。
Who are you writing to?
你在给谁写信？
One man was told to fix up an air-line to provide compressed air for the machines they were using.
有个工人被派去安装"供气管"，给他们正在使用的机器提供压缩空气。