According to evolutionary theory, women living in poorer communities are predisposed to have daughters to ensure survival of the family line because the men are at greater risk of dying younger.是什么意思_According to evolutionary theory, women living in poorer communities are predisposed to have daughters to ensure survival of the family line because the men are at greater risk of dying younger.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句