perpetuation

n. 永存,不朽

permit, permutation, permute, pernicious, pernicious anaemia, perniciously, perniciousness, pernickety, peroration, peroxide, perpendicular, perpendicularity, perpendicularly, perpetrate, perpetration, perpetrator, perpetual, perpetual motion, perpetually, perpetuate, perpetuity, perplex, perplexed, perplexedly, perplexing, perplexity, perquisite, perry, pers, persecute, persecution, persecutor, perseptive, perseverance, persevere, persevering, perseveringly, Persia, Persian, Persian carpet (also Persian rug),