I've known him for years, but I still don't know what pushes his buttons.
我已认识他多年，可还是摸不透他的脾气。
Even if they know what the company is up to, they still have no idea what they're paying for Facebook, because people don't really know what their personal data is worth.
即使他们知道公司在做什么，他们仍然不知道他们给Facebook付了多少钱，因为人们对自己的个人信息值多少钱没有确切概念。
I don't know what I should buy for my sister.
我不知道该给我妹妹买什么。
What is the use of going to college if you don't know what you're going there for?
如果你不知道自己上大学的目的，上大学有什么用？
I've had to close down my business now and I don't know what I'm going to do for money.
我现在不得不歇业，不知道要做什么来赚钱。
I don't know what made me decide to try some new activities at the new school, but one day I chanced to show up for an after-school meeting of the Science Olympiad team.
我不知道我是出于什么原因决定在新学校尝试一些新的活动，但有一天，我碰巧参加了科学奥林匹克竞赛队的课后会议。
Scientists just don't know how to track such activity because they don't know what "signatures" to look for.
科学家们只是不知道如何对那些行为进行跟踪，因为他们不知道该去寻找怎样的“特征”。
We don't know a priori what the best strategies are [for folding proteins], so we create the tools and see what people do with them.
我们显然不清楚（折叠蛋白质的）最好策略是什么，所以我们做了一些小工具，看看人们会用它们干点什么。
In most matters of taste, when you do preference surveys, you'll find that most people don't really know what to choose, and will opt for the one that seems most familiar.
在大部分与品位有关的问题里，你只要做一个关于偏好的调查，就会发现大部分人其实不知道该选什么，然后最终会选看起来最熟悉的那个。
Once you know what your brand stands for and promises, don't be afraid to flaunt it.
一旦你知道你的品牌意味着什么以及品牌承诺，就别害怕炫耀。
If you don't know what you want, there's no message to deliver and no basis for connecting with other people.
假如你不知道你想要的是什么的话，你就不会去向别人传达某种信息，同时也没有和对方建立联系的基础。
For those that don't know what nixie tubes are, they were used back in 1969 in calculators and are quaint neon display tubes.
跟那些不知数码管为何物的朋友提个醒，数码管是十分精巧氖气显示管，在1969就被用于计算器中。
For those who don't know what this cake means — fix this in post production.
对于那些不知道蛋糕含义的人-，咦，在后期制作中把这段修复了。
It may be just her. I looked and I can't see what she sees, but I don't know - take a look for yourselves.
也许就只有她注意到。我看了下，我看不到她说的那个面孔，但是我不知道它到底有没有——你自己看看咯~。
And, while it may not be appropriate to expose all possible configuration fields to the user, developers don't always know what Settings are best for a final deployment.
而且，虽然将所有可能的配置字段都公开给用户也许并不合适，但是开发人员并非总是知道怎样的设置对于最终的部署才是最好的。
Well, my contract here is for one year, and I don't know what I should do after that. Maybe going around for a while.
不知道，我在这里的合同是一年的，我也不知道之后该干点什么，也许会四处走走。
Always keep in mind that other people don't care what you want — they want to know what's in it for them.
要经常记住，其他人并不关心你想要的——他们只想知道你想要的东西里有什么能提供给他们。
Be yourself, as you don't know exactly what qualities the interviewers are looking for.
做你自己就好，因为你不知道面试官要找的是什么性格特质。
I don't know what they fear for. Or may be just to show their new power?
我不知道她们怕什么，或者只是想显示一下她们的新权利？
Our customers are anywhere from 30 to 70 years old. I don't know what they do for a living and why they want fake divorces; all of this is kept confidential, and we don't really care, either.
我们的客户年龄从30到70岁不等，我不知道它们以什么为生计，也不知道他们为什么假离婚；所有这些都是保密的，不过，我们也不在乎这些。
There seems to be a downward trend for receiver utilization, but I don't know what it means.
接收方的利用率似乎有下降的趋势，但我不知道这意味着什么。
And I think the reason we don't is we don't really know what to aim for. We don't know what kinds of things make us happy.
原因在于我们没有目标，我们不清楚究竟什么东西能给我带来快乐，所以我们没发明这种机器来帮助做这些事情。
There's no room for debate if users simply don't know what the other side is saying.
如果用户根本无从知道相反观点，也就不存在辩论的空间和可能了。
We don't know for certain. But what might have happened to lead to the two different editions?
我们不能确切知道，但可能发生过什么，导致了这两个不同版本？
I told Mike to get pajamas. Now I don't know what I should buy for the baby.
我告诉迈克去买睡衣，现在我却不知道该给婴儿买什么了。
Maybe I don't know what to look for, or maybe they will start appearing as I move further south.
可是我却没有看到过，也许是我不知道上哪里找，也许还需要继续向南走才会看到。
I don't know what I was doing — searching for the girls?
我根本就不知道我在做什么，也许是在寻找我的孩子们？
I don't know what Malia and Sasha have planned for the rest of their summer, but I'll bet it isn't hitting a tree with a stick.
我不知道玛利亚和萨沙会如何安排她们余下的假期，但我肯定她们的计划不会是用棍子敲打一棵树。
But whenever I have trouble getting started because I don't know exactly what to do, and I ask for help, I'm amazed at how much it... helps.
但是每次在我不知道做什么而难以开始时，我就寻求帮助，我也很奇怪，为什么这一招这么有效。
But whenever I have trouble getting started because I don't know exactly what to do, and I ask for help, I'm amazed at how much it... helps.
但是每次在我不知道做什么而难以开始时，我就寻求帮助，我也很奇怪，为什么这一招这么有效。
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