dirtn.污垢；泥土；灰尘dirt guard防尘罩dirt floor(室内的)泥地面(未铺砖、木的)dirt chute土滑道dirt money额外卸货费dirt court黏土场地dirt trackn.泥铺跑道dirt count[化] 尘埃度; 纸张尘埃度dirt proofadj.防尘的dirt cover污垢的浮沫dirt bucket装土斗