我觉得很奇怪，为什么这么多的当爸当妈的老是要问没有孩子的夫妻这个问题。

I'm amazed at how many mothers and fathers ask this of childless couples.

youdao

其目的是看看当改变大脑中的神经刺激时，夫妻间如何分享一个新奇而有挑战性的经历。

The goal is to see how sharing a new and challenging experience with a spouse changes the neural activation of the brain.

youdao

但是当这对夫妻发现他们即将有一对双胞胎时，毅力抵消了一切困难。

But the perseverance paid off when the couple found out they are expecting twins.

youdao