得出这一理论的是经济学家凯西·巴克尔斯，挺幸运的是，她自己的小孩的出生间隔时间正好是两年多一点。

The theory comes from Kasey Buckles, an economist whose own children are, rather fortunately, just over two years apart in age.

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得出这一理论的是经济学家凯西西·巴克尔斯，挺幸运的是，她自己的小孩的出生间隔时间正好是两年多一点。

Thee theory comes from Kasey Buckles, an economist whose own children are, rather fortunately, just over two years apart in age.

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她喜欢这个小孩，就好像是喜欢她自己的儿子一样。

She loves the child as if he were her own son.

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