This question of second-generation infertility is an area of particular interest, and given the relative infancy of the science of IVF, it is something that will become clear only in years to come.

假设IVF这门科学还处在相对幼稚的时期，第二代不育的问题是一个非常让人感兴趣的领域，涉及的问题可能只有在未来几年才会清楚。

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However, most of the provings were done between 100 and 200 years ago, when medical science was in its infancy.

然而，大部分的验证都是在100到200年前做的，当时医学科学尚处于婴儿期。

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However, most of the provings were done between 100 and 200 years ago, when medical science was in its infancy.

然而，大部分的验证都是在100到200年前做的，当时医学科学尚处于婴儿期。

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