longissimus dorsi muscle

例句：

1. 1.The patient was lying on the table with his arms outstretched.
   病人躺在床上，手臂伸展开来。
2. 2.The longissimus dorsi muscle is responsible for lifting the upper body.
   长肌腱负责抬起上身。
3. 3.The doctor advised him to exercise regularly to strengthen the longissimus dorsi muscle.
   医生建议他定期锻炼以增强长肌腱。