prezn.总统PREabbr.Petroleum Refining Engineer炼油工程师pre-wean早期断奶prebladder膀胱口前腔pregassing预放气pregnanone孕烷酮Preeoeious早实Prehn sign普雷恩征(附睾炎时、扶抬阴囊疼痛减轻、扭转精索时疼痛加重)Precupescu普雷库佩斯库preheatingv.预热Prevalencc患病率precondemnvt.(未经审理或慎重考虑)预定 ... 有罪