Resnatron
[电] 谐振腔四极管
🗣️ 情景例句
Oh, that's wonderful! That's wonderful!
噢， 真是美极了 ，真是美极了！
His presence in the room was not noticed.
没有人注意到他在房间里。
Let's think carefully, I replied.
“让我们仔细想一想，”我答道。