Ubitron
(=Undulated Beam injector)波动射束注入器
🗣️ 情景例句
What time do you usually have supper?
你通常几点吃晚餐？
When the accident happened, I was cleaning the car.
当意外事故发生的时候，我在清理汽车。
London is on the river Thames.
伦敦位于泰吾士河边。