Donutron
笼圈式谐振腔磁控管
🗣️ 情景例句
Well, I have an appointment now, I'll have to go.
嗯，我还有一个约会，我得走了。
Would you care for a cop of coffee?
要被咖啡吗？
He has a nice sum of money put away.
他存了一大笔钱。