英汉词典

1. (常指令人不快的事件的)反复发生，重复出现，重演
    If there is a repetition of an event, usually an undesirable event, it happens again.

repetition的近义词

    e.g. Today the city government has taken measures to prevent a repetition of last year's confrontation...
           今天市政府已经采取措施，防止去年的冲突重演。
    e.g. Collins wants to avoid repetition of the confusion that followed the discovery in 1989 of the cystic fibrosis gene.
           科林斯想要避免1989年发现囊肿性纤维化致病基因后的那种混乱局面再次出现。

2. (词语的)重复
    Repetition means using the same words again.

    e.g. He could also have cut out much of the repetition and thus saved many pages.
           他原本也可以砍去许多重复的内容，从而缩减许多页。