Kathetron
一种有外栅极的三极管, 辉光放电管
🗣️ 情景例句
By the way, I'm Richard.
噢，我忘了说，我叫Richard。
What makes life dreary is the want of motive.
没有目的，人生就黯淡无光。
I guess I could come over.
我想我能来。