反反复复 repeatedly
Explanation
一次又一次；反复多次。
Again and again; repeatedly many times.
Origin Story
小明要参加一个重要的比赛，为了取得好成绩，他每天都坚持刻苦训练。他反复练习每一个动作，一遍又一遍，直到每一个动作都做到完美无缺。即使遇到困难和挫折，他也没有放弃，而是反反复复地尝试，不断改进自己的技术。比赛前夕，他依然保持着高强度的训练，反反复复地检查自己的装备，确保万无一失。最终，在比赛中，他凭借着自己刻苦的训练和不懈的努力，取得了令人瞩目的好成绩。
Xiaoming was going to participate in an important competition, and in order to achieve good results, he persisted in diligent training every day. He repeatedly practiced every movement, again and again, until every movement was perfect. Even when faced with difficulties and setbacks, he did not give up but tried repeatedly and constantly improved his skills. On the eve of the competition, he still maintained high-intensity training, repeatedly checking his equipment to ensure foolproofness. Finally, in the competition, he achieved remarkable results through his diligent training and unremitting efforts.
Usage
形容事情或动作反复多次，多用于描写事情的拖沓或反复。
Describes something repeated many times, often used to describe the procrastination or repetition of something.
Examples
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他反反复复地修改论文，直到满意为止。
ta fan fan fu fu de xiugai lunwen, zhidao manyi wei zhi.
He revised his paper repeatedly until he was satisfied.
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这件事反反复复地拖延，最终还是没有解决。
zhe jian shi fan fan fu fu de tuoyan, zhongjiu hai shi meiyou jiejue。
This matter was repeatedly delayed and ultimately unresolved