Sobel
n. 索贝尔（品牌名, 一种边缘检测滤波器）
🗣️ 情景例句
This is a rough group.
这是一群粗野的孩子。
I asked him to stop, but he wouldn't.
我请他停止，但是他不肯。
At what time can we work out a deal?
我们什么时候洽谈生意？