教皇制度

例句：

1. 1. The pope is the head of the Catholic Church.
   教皇是天主教会的首领。
2. 2. He was a famous pope during his reign.
   他在任期间是一位著名的教皇。
3. 3. The pope's speech at the World Youth Festival was widely praised.
   教皇在世界青年节的讲话受到了广泛的赞扬。