电影音乐可以制作得令人难忘，因为其主旋律在影片中反复出现。

Movie music can be made memorable because its themes are repeated throughout the film.

《柯林斯英汉双解大词典》

母爱是中国古代诗歌中反复出现的主题，如唐代诗人孟郊的《游子吟》。

Motherlove is a repeated subject in Chinese ancient poems, like "Song of the Parting Son" by Meng Jiao, a poet of the Tang dynasty.

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种族是该作品中反复出现的一个主题。

Race is a recurrent theme in the work.

《柯林斯英汉双解大词典》

There is that physical comedy, and I'll suggest to you that in that sentence, the pushing and pulling, you're seeing part of Nabokov's verbal play.

有着强烈的肢体喜剧色彩，我认为在这句话中，反复出现的推和拉，想你展示了纳博科夫的文字游戏。

耶鲁公开课 - 1945年后的美国小说课程节选

So, this is my question to you: how complete and perfect is the image of Providence that hovers moonlike over the pages of Paradise Lost?

因此，我的问题是：，这里如月亮一般,在的字里行间反复出现的天意的形象,到底是有多么的完整和美好？

耶鲁公开课 - 弥尔顿课程节选

When you start describing the significance of a symbol like the tunnel, which recurs in the book, you immediately begin to limit it, and a symbol should go on deepening.

当你开始描述一个象征的意义,比如说在书中，反复出现的隧道，当你一开始予以限制，这个象征就会继续深化。

耶鲁公开课 - 1945年后的美国小说课程节选