thoracic fin

• 胸

thoracic fin的用法和样例：

例句

1. The back muscles of the thoracic region are thinner.
   胸段的背肌较薄弱。
2. Conclusions Endoscopic thoracic sympathectomy is simple and safe, procedure.
   结论内镜下胸交感神经链切断术比较安全。