postero-lateral arm

例句：

1. 1. The doctor examined the patient's postero-lateral arm for signs of infection.
   医生检查了患者的后侧臂，以寻找感染的迹象。
2. 2.During surgery, the surgeon used a postero-lateral arm to lift the patient's leg.
   在手术期间，外科医生使用后侧臂来抬起患者的腿。
3. 3.The patient was given an injection in the postero-lateral arm to relieve his pain.
   患者被注射在后侧臂以缓解他的疼痛。