... male fertility ==> 雄性可育性 male fertility rate ==> 男子生育率 male fitting ==> 阳螺纹管接头,阳模配合,外螺纹配件 ...
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Larsen说，通过对生育率提高前后现代人口中妇女和男子蛀牙发病率的比较，就能够测出多少龋齿是由正在怀孕的妇女贡献的。
How much being pregnant contributes to cavities could be tested, says Larsen, by comparing the incidence of tooth decay in women and men in modern populations before and after boosts in fertility.
观察家们说，黑人男子暗淡的就业前景，也许可以部分地解释非洲裔美国妇女未婚生育率较高的现象。
Poor job prospects among black men may partially explain the higher out - of - wedlock births among African? American women, observers say.
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