drumlin field雁列丘地形;鼓丘地
drumlin soils鼓丘土壤
rock drumlin石鼓丘;岩石鼓丘
drumlin soil鼓丘土
Drumlin fields鼓丘地
landslide drumlin滑坡鼓丘
hanging drumlin悬鼓丘
N（名词） a streamlined mound of glacial drift, rounded or elongated in the direction of the original flow of ice 冰丘