Gastriode
充气三极管, 闸流管
🗣️ 情景例句
I heard a lot of shouting, what's up?
我听见很多喊声，出了什么事了？
He feels awkward.
他感到困惑。
I could say nothing but that I was sorry.
我除了说“对不起”之外，什么也说不出来。