一来二去
一来二去一来二去[往][yī lái èr qù]1.■in the course of contacts; gradually; in the long run:他们常在一起踢足球，一来二去地也就熟了。As they often play football together, they have got to know each other quite well.
一来二去一来二去[往][yī lái èr qù]1.■in the course of contacts; gradually; in the long run:他们常在一起踢足球，一来二去地也就熟了。As they often play football together, they have got to know each other quite well.
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