injecting septum

例句：

1. 1. The surgeon used a needle to inject the medication into the patient's body.
   外科医生用针将药物注入病人体内。
2. 2. The anesthesiologist injected the patient with a local anesthetic before the surgery.
   麻醉师在手术前给病人注射了局部麻醉药。
3. 3.The pathologist examined the tissue samples for any signs of infection or abnormalities by injecting them with dye.
   病理学家通过向组织样本中注入染料来检查是否有感染迹象或异常情况。