一来二去 back and forth
Explanation
指经过一段时间，反复多次，逐渐达到某种结果。
Refers to a process that takes a while, repeated actions, and gradually reaches a certain result.
Origin Story
从前，有一个叫小明的孩子，他家住在一个安静的小村庄里。村庄的后面有一片茂密的树林，小明很喜欢在树林里玩耍。有一天，小明在树林里玩耍的时候，看到了一只可爱的小兔子。他小心翼翼地靠近小兔子，想把它捉回家。小兔子警惕地望着小明，并没有逃跑。小明每天都去树林里找小兔子，一来二去，小兔子就渐渐地熟悉了小明，不再害怕他了。小明和小兔子成了好朋友，经常一起在树林里玩耍。
Once upon a time, there was a boy named Xiao Ming who lived in a quiet village. Behind the village was a dense forest where Xiao Ming liked to play. One day, while playing in the forest, Xiao Ming saw a cute rabbit. He cautiously approached the rabbit, wanting to catch it and take it home. The rabbit looked at Xiao Ming warily, but did not run away. Xiao Ming went to the forest every day to look for the rabbit, and gradually, the rabbit became familiar with Xiao Ming and was no longer afraid of him. Xiao Ming and the rabbit became good friends and often played together in the forest.
Usage
这个成语通常用来描述事物或关系逐渐发生变化的过程。它可以用来表示朋友之间逐渐熟悉、关系逐渐亲密、事物逐渐发展等。
This idiom is often used to describe the process of gradual change in things or relationships. It can be used to express that friends are gradually getting to know each other, relationships are becoming closer, or things are gradually developing.
Examples
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小明和邻居家的小狗一来二去就熟悉了。
xiao ming he lin ju jia de xiao gou yi lai er qu jiu shu xi le.
Xiao Ming and the neighbor's dog became familiar with each other after a while.
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经过一来二去，他们终于达成协议。
jing guo yi lai er qu, ta men zhong yu da cheng xie yi.
After some back and forth, they finally reached an agreement.
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他俩一来二去，就成了好朋友
ta lia yi lai er qu, jiu cheng le hao peng you
They got to know each other and became good friends