Backscattered
反(背)向散射的
🗣️ 情景例句
If there's anything you need, just knock on my door.
有什么需要帮忙的话，尽管敲门来找我。
Well, to tell the truth, I was a little disappointed.
说实话，我有点失望。
The pictures are on the wall.
画挂在墙上。