(of ground) the fact of rising or falling at a sharp angle

The steepness of the terrain is expected to make construction extremely complicated. 地形的陡峭预计会使施工变得极为复杂。

(of an amount) the fact of rising or falling very quickly from low to high or from high to low

The steepness of recent price rises has produced many unhappy customers. 最近价格的急剧上涨已经引起了许多客户的不满。