Topography is the study and description of the physical features of an area, for example, its hills, valleys, or rivers, or the representation of these features on maps. 地形学
noun [专属名词]地形学,地形测量学 ;地形,地貌;地图地形描绘;(剖,生)局部解剖(图)
The topography of the river's basin has changed significantly since the floods. 洪水过后,这条河的流域地形已经明显改变了。
-graph- graph(y),gram=write,表示“写,图”"topography n. 地形学(topo 地方,场所+graph 写+y→写地 方→地形学)