1. He plays the same songs over and over. 他反复演奏同样的几首歌曲。
2. A writer spends many hours going over and over a scene—changing a phrase here, a word there. 作家花许多个小时反复润色一个场景—这儿改个短语，那儿改个单词。
3. I lay awake all night, turning the problem over and over in my mind. 我一夜没睡着，反复思索这个问题。
4. When nutrients are used over and over in the environment, we call that a nutrient cycle. 当营养物质在环境中被反复使用时，我们称之为营养循环。
5. He faced the problem that complicates the lives of cannibals, namely: that a single victim cannotbe used over and over. 他面临着使食人族生活更加复杂的问题，那就是：一个受害者不能被反复使用。
