两位老爸说着就你一拳我一脚打了起来。可两个小朋友却已经在一边重新和好，玩起了游戏。
A quarrel soon turns into a fight while the two boys are already playing games as friends.
我说，你是不是还在记恨我打你那一拳。
科学界打架往往是好事，大西洋两岸你打我一拳，我回敬你一拳，尽管是客气地打。
As scientific punch-ups go, this is shaping up to be a good one, with blows (albeit polite ones) being thrown across the Atlantic.
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