Grasslen.格拉斯尔grassn.草；草地vt.喂(草)；(以草)覆盖；告发grass -roots public management基层公共管理Grassroots public security organs基层公安grass-roots democracy practices基层民主实践grass hopper pipe coupling method导管装配的分组法grassroots financial institutions基层金融机构Grass-roots political authority基层政权grass-roots democratic election基层民主选举grass-roots party organizations基层党组织grass-roots medical institutions基层医疗机构grass- roots Party organizations基层党组织