Phanotron
[电] 热阴极含气整流管
🗣️ 情景例句
autograph copies for the guests at the opening?
在展览开幕时为客人在书上亲笔签名呢
He failed the examination but he didn't seem to care.
他考试不及格却似乎并不在乎。
'Excuse my interrupting you.
“请原谅我打断了您。