Cathodogram
电子衍射示波图, 阴极射线示波图
🗣️ 情景例句
The boxes of presents.
那些礼物盒。
There is no friend so faithful as a good book.
最忠实的朋友莫过于一本好书。
drawing the particle first towards the advancing wave,
先把微粒拉向前移的海浪，