repeat operation的用法和樣例：
例句
- Usually, repeated operation of a relay will cause the contact resistance to increase gradually over time.
一般而言，繼電器的重複操作將導致接觸電阻隨時間的大幅度上升。 - This algorithm avoids the numerous repeated operations for getting many pixel color values without increasing the number of push and pop operations.
改進后的演算法不增加入棧出棧操作的次數，卻免除了原演算法中為獲取眾多象素顏色值所需要的大量重複操作。
