Harmodotron
(产生毫米波的)电子束管, (正交场)毫米波振荡管
🗣️ 情景例句
We're off to the animal shelter.
我们这就去动物收容所。
No matter what she says, don't show you are afraid.
不论她说什么，你也不要让人知道你害怕了。
Every year I enter for the garden competition too, and I always win a little prize for the worst garden in the town!
每年的花园竞赛我也参加，但总因是镇上最劣的花园而获得一个小奖！