短语词组短语ultralong lasting narcotic analgesic 超长效麻醉性镇痛药narcotic analgesic agent 麻醉性止痛药narcotic analgesic drug 麻醉镇痛药物narcotic analgesic activity 麻醉性镇痛活性narcotic analgesic drugs 麻醉性镇痛药 返回 narcotic analgesic