a long line or hollow that is formed or cut into the surface of something

A deep furrow has formed in the rock, where water has run over it for centuries. 经过数百年的冲刷，溪水在岩石上刻出了一条深深的沟壑。

Years of anxiety have lined her brow with deep furrows. 多年的焦虑在她的额头上留下了深深的皱纹。

to form or cut a long line or hollow in the surface of something

The wheels of the heavy tractor furrowed the soft ground. 重型拖拉机的轮子在柔软的土地上压出了车辙。

The pain of the headache made him furrow his brow (= make lines in the skin above his eyes). 头痛使他眉头紧锁。