perennially

adv. 永久地

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, perennial, 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, perform,