praecostal spur

例句：

1. 1.The surgeon carefully removed the parasternal spur to relieve the patient's pain.
   外科医生小心地切除了胸骨旁的突起，以缓解病人的疼痛。
2. 2. The patient was diagnosed with a parasternal spur, which required surgery to remove it.
   患者被诊断出有胸骨旁的突起，需要手术来移除它。
3. 3. The doctor explained that the parasternal spur was an indication of underlying heart disease.
   医生解释说，胸骨旁的突起是潜在心脏病的迹象。