obduracy

n [U]. obdurately adv: obdurately refusing to go 坚决不去.

oak-apple, oaken, OAP, oar, oarfish, oarlock, oarsman, OAS, oasis, oast, oasthouse, oat, oatcake, oath, oatmeal, oats, OAU, ob, obbligato, obbr.(=Music TV), obdurate, OBE, obedience, obedient, obediently, obeisance, obelisk, obese, obesity, obey, obfuscate, obfuscation, obiter dictum, obituary, object, object glass, object lens, object lesson, object to, object to sth., objection,