intercostal muscles

例句：

1. 1.The patient was lying on his back, with intercostal muscles strained.
   病人平躺在背上，肋间肌肉紧张。
2. 2.During the surgery, the surgeon had to manipulate the intercostal muscles to access the heart.
   手术期间，外科医生必须操作肋间肌肉以进入心脏。
3. 3. The patient's breathing was shallow and labored, indicating that the intercostal muscles were weak.
   病人的呼吸浅而费力，表明肋间肌肉无力。