动物到底为什么要玩耍，这个问题仍然在文献中存在争议，并且每个物种玩耍的原因也不尽相同。
Exactly why animals play is still a matter debated in the research literature, and the reasons may not be the same for every species that plays.
“到底是什么在烦你？”他问道。
他到底在干什么？
几个小时后，当她来告别时，家人要求她解决他们一直在争论的问题，即她到底给了什么建议。
A few hours later, when she came to say goodbye, the family asked her to settle an argument they've been having over exactly what advice she had given.
在《一站到底》节目中获胜之后你会赢得什么奖品？
What prize will you win after winning the competition in the program Stay to the End?
当然，她并不明白我到底在写什么。
长期以来，研究恐龙生理学的科学家们一直在争论恐龙到底是温血动物还是冷血动物。
Scientists studying the physiology of dinosaurs have long debated whether dinosaurs were warm- or cold-blooded.
社会联系到底在多大程度上能驱动资尚有待观察，她补充道。
How exactly social connections will drive dollars remains to be seen, she added.
这样的模型中，您必须知道需要的项到底在什么位置。
You're forced in that model to always know exactly where in the set the items you want are.
在餐馆里，你永远不知道你吃的食物到底有多新鲜。
You can't ever be sure exactly how fresh your food really is in a restaurant.
当他们为此受到责备的时候，他们似乎不理解人们到底在向他们要求什么。
When they are reproached for this, they appear not to understand what is being demanded of them.
先说误诊的事情：认为我们当前的困难根源在缺乏竞争到底有什么意义？
About that misdiagnosis: What sense does it make to view our current woes as stemming from lack of competitiveness?
我们将介绍启动链中的几个主要函数，并解释一下到底在进行什么操作。
I walk through some of the major functions in the boot chain and explain what's happening.
在我们出售整个农场之前，难道我们不应弄弄清楚到底买主是谁吗？
Before we sell the entire farm, should we not be clearer about who exactly is buying it?
热力学在问你们，到底是系统对环境做功，还是环境对系统做功？
Thermodynamics is asking you, what work does this thing do on the surroundings or the surroundings do on the system?
我们需要决定的是，我们在利比亚的行动到底期待怎样的结果！
What we need to decide is, What is the realistic outcome we are working toward in Libya?
它的数值告诉你到底有多少，状态在热力学上是可以出现的。
Its magnitude tells you about more or less how many states are thermally accessible.
我认为，你们可以说，在推进撤兵方面，他们的战略就是坚持到底。
I guess you could say that when it comes to pushing for withdrawal, their strategy is to stay the course.
首先，你要做的是和他交流，慢慢的了解他到底在纠结什么。
But first you'll have to communicate and gently discern what exactly he's struggling with.
在资源逐渐枯竭的时刻，倒是可以看看我们的付出到底得到了什么。
So in the time of declining resources, we might look what we were doing with what we get in return for it.
所有的营地居民只能等待——可他们到底在等什么又并不确切。
All residents can do there is wait — but it's not clear what, exactly, they're waiting for.
2001年，布什询问律师：在美国法律中，到底怎样构成“酷刑”？
In 2001, Bush asked government lawyers: What exactly constitutes "torture" under U.S. law?
福特短暂地纠结了会儿，到底要不要说出他没有其他支付方式的事实，不过还是在一瞬间决定死扛到底。
Ford wondered briefly whether to raise the fact that he didn't have any other means of payment on him, but decided for the moment to soldier on.
我甚至不打算问格林，到底是不是一棵杨柳在哭泣。
I wasn't even going to ask Greene if it was a weeping willow.
泰勒问我到底是在与什么抗争。
泰勒问我到底是在与什么抗争。
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