Donutron
笼圈式谐振腔磁控管
🗣️ 情景例句
That's all right. We don't go to bed early.
那没关系。我们不会睡得太早。
Don't forget to invite him.
不要忘记邀请他。
That's very late.Can the dentist see me now?
那就太晚了。牙科医生现在就不能给我看一下吗？