persist

vi.(in)坚持，不屈不挠

perplexing, perplexity, perquisite, perry, pers, persecute, persecution, persecutor, perseptive, perseverance, persevere, persevering, perseveringly, Persia, Persian, Persian carpet (also Persian rug), Persian cat (also Persian), Persian lamb, persiflage, persimmon, persist in, persistence, persistency, persistent, persistently, person, person-to-person call, persona, persona grata, persona non grata, personable, personably, personage, personal, personal assistant, personal column, personal pronoun, personality, personality cult, personalize, personalise,