Tdr
[计] 时间域反射仪
🗣️ 情景例句
I was really worried.
刚才我真的很担心。
He can only speculate as to which horse will win the race.
他只能推测那一匹在赛马中会获胜。
Because of this, he has not been able to get his own car into his garage even once.
为此，他甚至一次也没能把自己的车开进车库。