Monotron
莫诺速调管, 直越式速调管, 无反射极速调管
🗣️ 情景例句
Oh, she has an opening tomorrow at ten.
哦，她明天上午10点有空。
Do I have to make a reconfirmation?
我还要再确认吗？
The bison skins were sent by rail to cities to be sold.
野牛皮用火车运到城里出售。