Ophitron
小型微波发生器, 微波振荡管
🗣️ 情景例句
I got lost for two days and I couldn't find anyone who could understand me.
我已经迷路两天了，找不到一个人可以听懂我的话。
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。
It is used by travellers and business people all over the world.
在世界各地的旅行者及商人都用英语。