Harmodotron
(产生毫米波的)电子束管, (正交场)毫米波振荡管
🗣️ 情景例句
and for the furniture needed,
和购买必需家俱，
Lightly come, lightly go.
易得易失。
As a great many people will be visiting the country, the government will be building new hotels, an immense stadium, and a new Olympic-standard swimming pool.
由于将有大批的人到我们国家来，所以政府准备建造一些新的饭店、一个大型体育场和一个新的奥运会标准游泳池。