Backscattered
反(背)向散射的
🗣️ 情景例句
and my math teacher's going to miss her.
而我的数学老师也会想念她。
What are these things doing here?
这些东西怎么会在这里？
She put away her compact and smiled kindly.
她放好了粉盒，慈祥地微笑着。