Harmodotron
(产生毫米波的)电子束管, (正交场)毫米波振荡管
🗣️ 情景例句
Oh, really?
噢， 是吗？
Quality matters more than quantity.
质重于量。
Macaroni has been grown in this area for over six hundred years.
通心粉在这个地区已经种植了600多年了。