scarp
n. (護城河的)內斜坡,陡坡
1. a long steep slope or cliff at the edge of a plateau or ridge; usually formed by erosion
2. a steep artificial slope in front of a fortification
Sometimes you may not even know that you are looking at a fault scarp.
甚至有時你都不知道你正在看的恰恰就是一個斷層.
The scarp has slopes with grades greater than 60 degrees.
這個懸崖的斜坡角度大於60度。