repetitiousness

例句：

1. 1. The teacher's lecture was filled with repetitiousness.
   老师的演讲充满了重复性。
2. 2. The book is full of repetitiousness and repetition.
   这本书充满了重复性和重复。
3. 3. The student struggled to overcome the repetitiousness in his studies.
   学生努力克服学习中的重复性。