Permatron
[计] 磁控管
🗣️ 情景例句
What books are required for this class?
这课需要什么样的书？
She served a flavorous stew to her friends.
她招待朋友香喷喷的炖肉。
Are sure both of us have a brighter future.
我们相信双方都有一个光明的前景。