Cathodogram
电子衍射示波图, 阴极射线示波图
🗣️ 情景例句
Don't mention it. What would you like to drink?
别客气，想喝点什么？
How far is it from the shore of the Atlantic to the mountains?
从大西洋海岸到山脉有多远？
Jill's eighteen years old, Tom.She's not a baby.
吉尔都18岁了，汤姆。她不是小孩子了