dimethyl morphine

例句：

1. 1. This medication is used to treat chronic pain.
   这种药物用于治疗慢性疼痛。
2. 2.The patient was given dimethyl morphine for the pain relief.
   病人被给予二甲基吗啡以缓解疼痛。
3. 3.The doctor prescribed dimethyl morphine for the patient's pain management.
   医生为病人开了二甲基吗啡，用于疼痛管理。