per

prep.每；经，由，靠

penumbra, penurious, penuriously, penuriousness, penury, peon, peony, people, pep, pep pill, pep talk, pepper, pepper-and-salt, pepper-mill, pepper-pot, peppercorn, peppermint, peppery, pepsin, peptic, per annum, per capita, per cent, per cent (US percent), per pro, per se, perambulate, perambulation, perambulator, perceivable, perceive, percent, percentage, percentile, perceptibility, perceptible, perceptibly, perception, perceptive, perceptively,