反反复复的英文：
like the burden of a song
ad.
repeatedly
again and again
over and over
time after time
back and forth

参考例句：

Once thought that there is the better one, just knew , the best one has already been forgotten in the initial road repeatedly.
曾经以为还有更好的，反反复复才知道，最好的已被遗忘在最初的路途。

repeated noises that fray the nerves.
令人神经紧张的反反复复的噪音

Suddenly music that seemed dull and repetitive comes alive.
突然间，似乎索然无味且反反复复的音乐生动了起来。