Sobel
n. 索贝尔（品牌名, 一种边缘检测滤波器）
🗣️ 情景例句
Scared? Why?
紧张？ 为什么？
She was flattered at the invitation.
她受到邀请，不胜荣幸。
The man went to great lengths to prove that the diamonds were real.
那人竭力想证明那钻石是真货。