To understand this predisposition for monogamy, he takes readers through the myriad feelings of love, from the heady, breathless exhilaration of falling, to the stubborn persistence of familial affection, to the bitterness of betrayal.

为了理解一夫一妻制的偏，邓巴博士带领读者体味了的各种感觉，从初坠河时忘乎所以，呼吸困难的兴奋，到义无反顾维持家庭关系，再到遭到背叛时的心如刀割。

When you love what you love unapologetically, it is beautiful.

当义无反顾上所的事务时，它就是美丽的。

What's sad is how many people go ahead and have kids anyway.

但可悲的是仍有很多人义无反顾要了孩子。

You were giving it all up for love.

当时为了义无反顾放弃了一切。

That's why we say jump in with both feet.

这就是为什么我们说全力以赴，义无反顾。

But whereas we can move in any direction in those other three dimensions we can only move in one direction of time — forward, relentlessly.

但是，虽然我们可以在其他三个维度上任何方移动，可我们只能朝着时间的一个方移动——义无反顾。

What’s needed now is a targeted, relentless counterterrorism campaign against ISIL that combines American air power, contributions from allies and partners, and more support to forces that are fighting these terrorists on the ground.

目我们需要的是一种目标明确，义无反顾的反恐行动方案，综合利用美国的空中力量和盟友的支持，加大对面反恐行动的支援，以此来打击ISIL。

But no one doubt we will run out there and fight for the city not only because we are the greatest teammates around us, but also we have great fans here.

但是没有人会怀疑我们是否会为了休城的胜利义无反顾，因为我们不仅有最优秀的球员，还有伟大的休城粉丝支持我们。

You understand? Y-You show me a train, I'll jump in front of it for her, no question. And she's not even mine.

明白吗？如果一辆火车驶来，我会义无反顾为她挡在面。她甚至都不是我亲生的。

And we are determined to boost our efforts in a more determined and more persistent way.”

我们将义无反顾，我们的努力将会更坚定，更持久。”

When salmon are ready to spawn, they make a one-way trip from the ocean up into streams to lay their eggs.

每到产卵季节，鲑鱼就会“义无反顾”的从海洋游到河里产卵。

I would throw myself off a cliff and go all the way to follow what my heart tells me.

我愿意奋不顾身，义无反顾追随我的内心。

But we're swinging for the fences.

但我们义无反顾。

So now he's gone from being hesitant to being on a crusade.

所以现在他从犹豫不决变成了义无反顾。

And I haven't really turned back since.

自那以后，我便义无反顾。

It's not the kind of squad I would want to join, but these 12 young men did it, and every weekthey were tested to see if they were healthy or were becoming sick from the food they were eating.

这不是我想加入的那种队伍，但这12个年轻人却义无反顾参与其中，每周都会对他们进行健康检查， 以观察他们是否健康， 还是因所食用的食物而开始生病。

Fru Lensmand Heyerdahl had taken up the case. She went about to high and low, never sparing herself, demanded to be called as a witness, and made a speech in court.

Fru Lensmand Heyerdahl 接手了这个案子。她颠沛流离，义无反顾，要求出庭作证，并在法庭上发言。

And the engineers will often dutifully, they will salute the designer and march off the cliff to make what needs to happen happen, even though it'll take weeks.

工程师们通常会忠实执行，他们会设计师敬礼， 然后义无反顾投入工作，即使这意味着需要花费数周时间来实现所需的功能。

And they'll do it even if they know it's suicidal, and they'll do it even if they know it will contribute to victory, not one iota.

即使明知此举是自取灭亡，他们也会义无反顾； 即便清楚这丝毫无助于胜利，他们依然会勇往直。

And so it just took me a little bit longer to get there, but Mandy kind of pulled me over and I've never looked back.

所以， 我花了稍长一点的时间才走到这一步，但曼迪把我拉了过来， 从此我便义无反顾。