permission

n.同意，许可，允许

perjury, perk, perkily, perkiness, perky, perm, permafrost, permanence, permanency, permanent, permanent wave, permanent way, permanently, permanganate, permeability, permeable, permeate, permeation, permissible, permissibly, permissive, permissively, permissiveness, permit, permutation, permute, pernicious, pernicious anaemia, perniciously, perniciousness, pernickety, peroration, peroxide, perpendicular, perpendicularity, perpendicularly, perpetrate, perpetration, perpetrator, perpetual,