lumbar trunks

例句：

1. 1. The patient was lying on the operating table with his lumbar trunks exposed.
   病人躺在手术台上，他的腰椎躯干暴露在外。
2. 2.The doctor examined the patient's lumbar trunks for signs of injury.
   医生检查了病人的腰椎躯干，寻找受伤的迹象。
3. 3. During the surgery, the surgeon had to manipulate the patient's lumbar trunks to access the affected area.
   在手术过程中，外科医生必须操作患者的腰椎躯干以进入受影响的区域。