Donutron
笼圈式谐振腔磁控管
🗣️ 情景例句
She called to say the plane was delayed.
她打电话回来， 告诉我们飞机误点。
Good deeds will shine as the stars of heaven.
善行如日月经天。
Some of us will die sooner, a few will live longer----on into a ninth or tenth decade.
有些人会死得早一些，少数人寿命会长一些--活到八十几岁或九十几岁，