Sobel
n. 索贝尔（品牌名, 一种边缘检测滤波器）
🗣️ 情景例句
I hope you won't take offense, But will accept what I say here as some fatherly advice.
我希望你不要反感，能够接受我这父亲般的建议。
So far I have been learning about China.
到止前我止，我一直都在研究中国的事情。
The lawyer ascertained that a policeman had indeed dealt roughly with foreigners on several occasions.
律师证实有个警察确实多次粗鲁地对待外国人。