perennial

a.终年的,四季不断的,持久的 n.多年生植物

perceptively, perceptiveness, perceptivity, perceptual, perch, perchance, percipience, percipient, percolate, percolation, percolator, percussion, percussion cap (also cap), percussion instrument, percussionist, perdition, peregrination, peregrine, peremptorily, peremptory, peremptory writ, perennially, perestroika, perfect, perfect pitch (also absolute pitch), perfectibility, perfectible, perfection, perfectionism, perfectionist, perfectly, prefer sb to do sth., perfervid, perfidious, perfidiously, perfidiousness, perfidy, perforate, perforating, perforation, perforce,