Esiatron
静电聚集行波管
🗣️ 情景例句
The rules ought to be observed.
这些规则就予以遵守。
I can paint.
我会画。
The Indian answered:No, madam. You don't understand! You're all after me! I'm the doctor!
“不，夫人。你不懂！你们所有的人都在我后面！我是医生！”