资料来源 : WordNet®

primaeval
     adj : having existed from the beginning; in an earliest or
           original stage or state; "aboriginal forests"; "primal
           eras before the appearance of life on earth"; "the
           forest primeval"; "primordial matter"; "primordial
           forms of life" [syn: {aboriginal}, {primal}, {primeval},
            {primordial}]