Grassen.格拉斯grassn.草；草地vt.喂(草)；(以草)覆盖；告发grass carp fingerling草鱼种grass seed processing牧草种子加工grass- root library基层图书馆grass-root stations基层站段grass-root refinery地面炼油厂grass land succession草地演替grass- mot district基层政区Grass - roots units基层Grass-roots amateur基层业余grass - rooted bank基层银行