give birth to sons

基本解释

Mace previously published a study that found mothers with more muscle mass are more likely to give birth to sons during food shortages.
梅斯曾发现，在食物短缺时，肌肉较多的妇女更可能生下男孩。
That, in turn, would explain why women in rich countries, who are less likely to suffer from hunger and disease, are more likely to give birth to sons.
结果那就解释了发达国家的女人（他们不太可能挨饿或染上疾病）为什么更可能产下儿子。
Previous studies have shown that women who live in cultures where greater value is placed on sons are more likely to suffer from PND if they give birth to a girl.
以前的研究表明，生活在重男轻女文化背景下的妇女如果生了一个女孩，则更易遭受PND的痛苦。

That, in turn, would explain why women in rich countries, who are less likely to suffer from hunger and disease, are more likely to give birth to sons.
ECONOMIST: The sex of a child may depend on how stressed its mother is