Photonphysics
光子物理学
🗣️ 情景例句
The plan is a simple one.
计划很简单。
My brother gets up later than I do.
与我做比，我的兄弟晚起床。
My knee hurts, my foot hurts and my head too.
我的膝盖伤了，脚伤了，还有头。