earthedadj.接地的；通地的动词earth的过去式和过去分词形式.earthn.地球；泥土；世间earth pillar土柱earth's axis挣一元earth thrust土推力earthing rod接地柱,接地棒earth screen地网,接地屏蔽earth filledadj.填土的earth magnet地磁Earth cubage土方量earth sample土样品earthtremors地震