Tdr
[计] 时间域反射仪
🗣️ 情景例句
Workers have to work very hard to keep bread on the table.
工人得十分努力工作才能赚钱糊口。
Excuse me. Are you Susan Davis from Western Electronics?
对不起，你是来自西方电子公司的苏姗·戴卫斯吗？
What's up?
有什么事吗？