Hillen.希勒hilln.小山；丘陵；山冈；斜坡vt.堆起；培土hills hidden/shrouded in mist雾霭笼罩着的小山Hills constellated with lights.山脉遍布闪耀着灯光。hill-slope hydrological process坡地水文过程hill excavating and offshore filling开山填海Hill-river and Island-famous city丘陵-江洲-名城hillslope-gully side erosion system坡沟系统hill system of differential equations希尔微分方程组hills concealed by shrouding mists.山被笼罩在薄雾中。hillg-gully areas in Norhtem Shaanxi陕北丘陵沟壑区hillslope-gully slope erosion system坡沟系统