Scientists are continually learning more about sleep, but one thing they know for sure is this—for humans, it is as important as food and water.
科学家正在不断加深对睡眠的研究，他们对其中的一件事实确信无疑：对于人类来说，睡眠与食物和水一样重要。
But I know one thing for sure -i don't want to be seen as typecast.
但我可以肯定一件事：我不想给自己定型。
I had always been emphatic that I didn't know whom I would marry, but one thing was for sure — he would not be a farmer or dairyman!
我一直都是态度坚决地表明我不知道要嫁给什么样的男人，但有一点是肯定无疑的——他不会是务农的或养乳牛的！
One thing we know for sure is that the British economy will suffer its first recession for 18 years in 2009.
头一件我们可以肯定的事就是英国的经济将在2009年经受18年来的第一次衰退。
The only thing we know for sure is that it increases our debt and locks in bigger and bigger interest payments every single year.
我们唯一可以肯定的一点是，它增加了我们的债务而且我们在每一年都会支付更多的利息。
One thing we know for sure — it is not the Higgs boson.
只有一件事我们相当确定——一定没有希格斯玻色子。
One thing I know for sure is that happiness is connected to two key mood regulators that our brains produce - serotonin and noradrenaline.
有一点我是肯定的，快乐与由大脑产生的两把情感调节器的钥匙密切相关——血清素和去甲肾上腺素。
One thing I know for sure, to be good in my business I could simply meet the expectations of my passengers.
有一件事我深信不疑，想在这个行当中做得好，只要满足乘客的期望就行了。
The important thing is YOU know the information, andyou can make sure your character behaves in a way that's true to personality.
最重要的是你要了解这些信息，而且务必要使你剧本人物的行为和他的个性相吻合。
Basically, we still don’t know for sure - but the important thing is to find out what you’ve got and what you like.
基本上我们也不是太确定---但是重要的是去发现你有什么和你喜欢什么方式。
The most vital thing to do to be the most accurate would be to get to know their normal eye patterns first and to make sure that this person is not an exception.
要想做出最准确的判断，至关重要的一点就是首先了解他们正常的眼动模式，确定他们不是例外的人。
You'll want to make sure that you can deploy the code to a proper environment first, so you know that you're testing the right thing.
首先要保证将代码部署到适当的环境，这样你就知道在测试你要的东西了。
The one thing I know for sure is that I cannot get those hours of my life back, and that there is no point wasting more time by dwelling on it.
有一件可以确定的是我不能将生命中的这些时间追回来，然后对这还念念不忘是没有意义的。
You know one thing for sure, no matter how well you do your job no one is going to reward you for it.
你要相信一件事，不管你工作如何出色，没人会给你奖赏。
That is the only thing we know for sure.
这是我们唯一确定的事情。
One thing I know for sure, to be good in my business I could simply just meet the expectations of my passengers.
我很清楚要干好这一行，需要做的仅仅就是满足乘客的期望。
And the fourth thing is having a consumer financial protection agency that is really going to do a good job making sure that consumers know what they're getting when it comes to financial products.
第四件事，消费者金融保护机构将要以优良工作来确保消费者知悉，在谈到金融产品时，他们会得到什么。
This makes Dr Spangenberg sure of one thing: “What I think I know, they probably know way more.”
这让Spangenberg博士确认了一件事：“我知道我在想什么，而他们可能知道的更多”。
Charles: Nothing's ever for sure, John. That's the only sure thing I do know.
查尔斯：约翰，没有什么事情是肯定的，这也是唯一我能肯定的事情。
I do know one thing for sure: dreams really do come true when you believe in your dreams, when you give God something to work with (doing your part), and when you believe in and trust God.
有一件事我可以肯定：当你相信梦想，当你做出一些努力从而能让上帝能对你有所帮助，当你相信自己并信任上帝，梦想就一定会成真。
That's the only sure thing I do know.
这也是唯一我知道能肯定的事情。
One thing I'm sure of: something important happened at those ages that undoubtedly changed the direction of your life (or that of someone you know).
有一点我敢肯定：一些发生在那些时候的重要的事情，毫无疑问改变了你或你认识的人的的生活方向。
He said 'I'm nervous, I know everyone is nervous, but one thing is for sure, I am going to fight, give everything', and he looked every player in the eye.
“他说“我感到紧张，我知道每个人都紧张，但有一件事是确定的，我要去奋斗，竭尽全力”，然后他和每个人对视了一下。”
Philosophers often say that the only thing about God we can know for sure is how utterly unknowable God is.
哲学家经常说，我们对神的认识只有一样是可以肯定的，那就是我们只知道祂是高深莫测的。
And that things would change, but they never have, not really, and now I know for sure that what I've been feeling all these years is actually the right thing.
想等到事情有所变化，但是事实上没发生什么变化，而现在我确确实实地知道了，我这些年的感觉才是真真切切的。
And that things would change, but they never have, not really, and now I know for sure that what I've been feeling all these years is actually the right thing.
想等到事情有所变化，但是事实上没发生什么变化，而现在我确确实实地知道了，我这些年的感觉才是真真切切的。
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