Peritron
荧光屏可轴向移动的三维阴极射线管
🗣️ 情景例句
Hi, Son.
嗨 儿子。
No, it isn't. Yes, it is.
不，它不是。 是的，它是。
Waves are the children of the struggle between ocean and atmosphere.
海浪是大海和空气相斗的产物。