Kathetron
一种有外栅极的三极管, 辉光放电管
🗣️ 情景例句
I hope I can repay you for it.
我希望能报答你。
Treat it with respect.
请你放尊重点！
The following day, the patient asked for a bedside telephone.
第二天，这位病人要了一部床头电话。