Tdr
[计] 时间域反射仪
🗣️ 情景例句
How did the accident happen?
事故是怎么发生的？
He has a dish of jam.
他有一碟火腿。
It was usually very quiet, and he could see the park from his window.
那儿通常很安静，从他的窗户他可以看见公园。