Photonphysics
光子物理学
🗣️ 情景例句
If you watch carefully you will see how to do it.
你若细心观察，就会知道怎么做这件事。
If you want to be healthy, you have to stop smoking cigarettes.
如果你要身体健康的话，必须停止抽香烟。
There's an old teapot over there. Isn't it beautiful! said Ann.
“那儿有一个旧茶壶。它不美丽吗？” 安说