Grassa格拉萨grassn.草；草地vt.喂(草)；(以草)覆盖；告发grass-roots democracy基层民主grass -roots hospital基层医院grass marsh pine forest草本沼泽松林Grass - Roots Finance基层财政grass-cutting machine切草机grass-land irrigation草地灌溉grass cloth bed curtain夏布床帐grass-seed attachment草籽播种附加装置Grass-roots a buildup基层党组织grass-layer structure草层结构