second rib

例句：

1. 1. The surgeon removed the secondrib to relieve her pain.
   外科医生切除了第二肋骨以缓解她的疼痛。
2. 2. Thepatient was lying on the operating table witha second rib exposed.
   病人躺在手术台上，第二肋骨暴露在外。
3. 3. During thesurgery, the surgeon had to remove thesecond rib to access the heart.
   在手术过程中，外科医生不得不切除第二肋骨来接触心脏。