Kathetron
一种有外栅极的三极管, 辉光放电管
🗣️ 情景例句
Frankly, so did I.
坦白说， 我也是。
This professor has put all of his students to sleep except two.
这位教授使得除了两人以外的所有学生都入睡了。
Happy birthday! said the twins, and gave her a big red box.
“生日快乐！”双胞姐妹说，并将一个大红盒子送给了她。