gregarinulae

例句：

1. 1. The Gregorian calendar is the most widely used calendar in the world.
   格里高利历是世界上使用最广泛的日历。
2. 2. The Gregorian festivals are celebrated throughout the year.
   格里高利节日全年庆祝。
3. 3. The Gregorian calendar was introduced by Pope Gregory I in the 5th century.
   格里高利历由教皇格里高利一世在5世纪引入。