carpometacarpal joint of thumb

例句：

1. 1.The carpenter carefully measured the length of the carpometacarpal joint of the hammer before shaping it.
   木匠仔细测量了锤子的拇指掌骨关节的长度，然后开始塑造。
2. 2.During the operation, the surgeon had to make a precise cut at the carpometacarpal joint of the patient's hand.
   手术中，外科医生必须精确地在患者的手的拇指掌骨关节处进行切割。
3. 3. After the surgery, the patient was instructed to avoid heavy lifting and to exercise with care to prevent any damage to thecarpometacarpal joint.
   手术后，患者被告知要避免重物搬运并小心运动，以防止拇指掌骨关节受到损伤。