fatty marrow

例句：

1. 1. The patient's fat marrow was removed for treatment.
   为了治疗，患者切除了脂肪骨髓。
2. 2.Fatty marrow is a common cause of pain in the lower back.
   脂肪骨髓是下背部疼痛的常见原因。
3. 3. The doctor performed a biopsy on the patient's fatty marrow to investigate the cause of his pain.
   医生对患者的脂肪骨髓进行了活检，以调查他疼痛的原因。