crud
n.（名词）Slang 【俚语】 A coating or an incrustation of filth or refuse.污垢：污物或垃圾的覆盖层或凝结物Something loathsome, despicable, or worthless.污垢，渣滓，可鄙者：令人厌恶、可鄙或无用的事物One who is contemptible or disgusting.卑鄙的人，令人厌恶的人A disease or ailment, imaginary or real, especially one affecting the skin.怪病：想象的或真实存在的疾病或病痛，尤指皮肤疾病Sports Heavy, sticky snow that is unsuitable for skiing.【体育运动】 污垢雪：重而粘的雪，不适于在其上滑行
来源：Middle English crudde 中古英语 crudde possibly from Old English *cruden [past participle of] crôdan [to press, drive] 可能源自 古英语 *cruden [] crôdan的过去分词 [压，驱使]
