特殊用法frost mound1.冻丘ground ice mound1.【地质】土底冰丘ice mound1.【地质】冰丘organic mound1.有机物岩岗ovarium mound1.卵丘pimple mound1.小残丘pitcher's mound1.(棒球)投球区的土墩scoria mound1.火山渣丘