crumb基本解释
n,面包屑，碎屑；少许,同近
She stood up to brush the crumbs off her uniform..她站起来拂去制服上的面包屑。
面包屑，碎屑；少许英释中释na very small piece of dry food, especially bread or cake
crumb rubber,废胶末；粒状生胶.短语
