Sobel
n. 索贝尔（品牌名, 一种边缘检测滤波器）
🗣️ 情景例句
That's a great idea, Grandpa!
这太好了， 爷爷。
I'll work for 5 years and then go back to school.
我会工作五年，然后会学校。
He wrote books about communism. He said that all communists should help each other.
他写了不少关于共产主义的著作。他说所有的共产党人都应该互相帮助。