Cathodogram
电子衍射示波图, 阴极射线示波图
🗣️ 情景例句
Can you confirm that the meeting is at 9:00 a.m.?
你能否确认一下，开会的时间是早上9点吗？
Kennedy Airport, please. I have to be there by 7:00.
请到肯尼迪机场。我得在七点前赶到那儿。
How do you do? My name is Fred Smith.
您好，我是弗雷德.史蜜斯。