pleuropericardial

例句：

1. 1. The patient's condition was so severe that the pleuropericardium had to be opened.
   患者的病情非常严重，不得不打开胸膜心包。
2. 2.The surgery involved removing the pleuropericardium and repairing the heart.
   手术包括切除胸膜心包并修复心脏。
3. 3.The doctor explained that the pleuropericardium is a vital organ that plays a crucial role in the body's internal environment.
   医生解释说，胸膜心包是一个至关重要的器官，它在身体内部环境起着关键作用。