extensor carpi radialis brevis

例句：

1. 1. The patient had to perform a difficult surgery on his injured arm.
   这位病人不得不对他的受伤手臂进行一次困难的手术。
2. 2.The doctor advised the patient to exercise regularly to strengthen the extensor carpi radialis brevis muscle.
   医生建议病人定期锻炼以增强桡骨小肌。
3. 3. Due to an injury, the patient's extensor carpi radialis brevis muscle was weak.
   由于受伤，患者的桡骨小肌肌肉变弱了。