但到了食物充足的时期，男性由于可以成为更多孩子的父亲而更有价值。

But in good times sons were a better bet because they could father more children.

youdao

因此，如果你相信你自己会活得更久，那么选择就会变得更有价值，而早期的承诺就会变得不那么有吸引力。

So if you believe you will live longer, then options become more valuable, and early commitment becomes less attractive.

youdao

而作为权威网站，在选择网站作为自己的导出链接时，也会选择更有价值的(如果你想成为业界权威网站，就不能随随便便链接到不相关的垃圾网站上)。

And as authorities, the outbound links they choose to make carry that much more value (you don't get to be an authority in your field by randomly linking out to irrelevant, junk sites).

youdao