sternal line

例句：

1. 1. The doctor drew a diagram of the patient's spinal line on the chart.
   医生在图表上绘制了病人脊柱线的示意图。
2. 2. The surgeon used a scalpel to make a precise incision along the patient's spinal line.
   外科医生用手术刀沿着患者的脊柱线精确地切开。
3. 3. The patient was lying on his back with his spine straight and his spinal line visible.
   患者平躺在地上，脊柱直挺，脊柱线清晰可见。