"The mountain side has steepened"
"The landslides have steepened the mountain sides"
steepadj.险峻的;陡峭的;急剧的、大起大落的v.浸泡,浸透,湿透;沉浸,笼罩
steep land陡坡地
steep cusp陡尖
steep rump斜尻
steep wall陡壁
steep-toadj.陡峭的
steep hill陡峭的山
steep side陡帮开采
steep arch陡坡拱
steep fall暴跌
steep rise急剧上升