Q: In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
A ravine is generally a fluvial slope landform of relatively steep ( cross-sectional ) sides , on the order of twenty to seventy percent in gradient .
A:
A ravine usually has steep sides , and they are 20-70 % in gradient .