Sobel
n. 索贝尔（品牌名, 一种边缘检测滤波器）
🗣️ 情景例句
We'll set up our tents over there by the edge of the woods.
我们在林边搭帐蓬。
He that never rode never fell.
不骑马就永不会从马上跌下。
'At what time did you arrive at the station?'
“您几点钟到的火车站？”