Reflectometer
[电] 反射计
🗣️ 情景例句
The good news is that the Levinsons have come by
好消息是Levinson夫妇已来这儿
Don't forget to cable to let us know you arrived safely.
不要忘记在你安全地到达后打电报让我们知道。
At present I'm giving a lot of concerts.
现在我还要开一些音乐会。