Scientists do not know what causes acrylamide to form but they believe it occurs as a result of a chemical process during baking, frying, or grilling.
科学家并不知道是什么导致丙烯酰胺的形成，但是他们相信它是在烘焙、油煎、烧烤或烘烤过程中产生的一种化学物质。
If people do not know how much they are eating, it can be really hard for them to stick to a diet.
如果人们不知道自己吃了多少，他们就很难坚持节食。
Books do change lives, I know; and many readers have told me that Number the Stars changed theirs when they were young, that it made them think about both cruelty and courage.
我知道，书籍的确能改变生活；许多读者告诉我说，《数星星》在他们年轻时改变了他们的生活，这本书让他们思索残酷和勇气。
"Apple, as you know, likes to control their environment — they do it with their PCs and other products... because they think they can do it better," he said.
“你知道的苹果，喜欢掌控它所在的环境——在它的个人电脑和其他产品方面，他们都是这么做的……因为他们认为他们可以做的更好，”他说道。
Customers often do not know what they want until you show them something that isn't it.
消费者往往在您向他们展示那些不正确的东西之前，并不知道它们到底想要的是什么。
Wait, I hear you cry. How do they know? And what was it? Postmodernism—I didn't understand it. I never understood it. How can it be over?
等下，我听到你们的叫嚷声了。他们怎么知道的？那到底是什么东东呀？后现代主义——我还没理解它。我从来就没理解过它。它怎么说完就完了呢？
Due to the apparent victim's young age, the team couldn't determine the dinosaur's species. But they do know it was a sauropod-a giant long-necked plant-eater (sauropod picture).
由于很明显受害者年幼，研究小组不能确定这只恐龙的物种，但他们确定这是一只蜥脚类动物——一种巨大的长脖食草动物(蜥脚类动物照片)。
I don't know if they will do it, there is a long way to go, but they look as if they could do it.
我不知道他们能不能完成不败壮举，毕竟还有较长的一段路要走。
‘Should, would, could’ Thinking pattern – This type of person knows what they have to do to change their life, they are capable and they know it and they would do it if only……… e.g.
思维方式5 “我将，我会，我可以”——不断计划而不付诸实际行动。在改变现状时，他们知道自己需要做什么？
If they know it is, they might be confused about how to do it or they might wonder why they should.
如果他们知道，也可能对如何使用它感到迷惑，或者他们可能想知道为什么要这样做。
Yet it might be useful to know what they do all day, and whether any of it benefits shareholders.
但了解一下老板们整天都在忙乎什么，是不是对大小股东们有益，这也许还是有些好处的。
So somehow they know that they’re infected and they know what to do about it.
所以它们可能就是知道它们被感染了，还知道怎么去处理它。
So somehow they know that they're infected and they know what to do about it.
所以它们可能就是知道它们被感染了，还知道怎么去处理它。
Often, users do not know what they want; or if they do, they don't know how to describe it.
用户常常不知道他们要的是什么，或者知道是什么却不知道怎么描述它。
Often you simply do not know what users will do or how often they will access the site, and so sometimes it ends up really being a best guess.
通常，您根本不知道用户将要做些什么，或者他们以怎样的频率来访问该站点，因此有些时候，它真的是让人难以猜测。
People believe you're competent when they think you know what to do and how to do it.
只要人们认为你知道该做什么和如何做好，人们便会相信你能够胜任。
People do not know where the information they are sending is being stored and when, if ever, it is deleted.
人们并不知道他们所发送的信息被存储在哪一个角落，什么时候被删除（假如确实有删除这回事的话）。
They do not know the darkness and the heartaches; they only see the light and joy, and call it "luck".
他们不知道其中的黑暗和心痛，他们只看到了光明和喜悦，并称之为‘幸运’。
When they do occur, it helps to know the bug patterns associated with them so that we can diagnose them quickly.
当它们真的发生时，工具能帮我们弄清和它们相联系的错误类型，这样我们能快速诊断它们。
I do know that they're pretty linear in terms of keeping a relationship - whether they end it or start it.
我只知道他们在保持情侣关系上是很直爽的，不管是开始还是结束恋情。
Scientists do not know exactly what causes acrylamide to form but they believe it occurs as a result of a chemical process during baking, frying, grilling or toasting.
科学家并不确定是什么导致丙烯酰胺的形成，但是他们相信这是在烘焙，油煎，烧烤或烘烤过程中产生的一种化学物质。
They should be sufficiently decoupled from its implementation that they do not know where is or how it is implemented.
它们应当完全地从未知（不知道位置和实现方式）的实现中解耦。
Still it is useful to know what big players do and, more importantly, what they don’t do.
了解受欢迎的博客做了什么，更重要的是了解他们不做什么，也是很有用的。
The typical client imagines they generate lots of money, doesn't know quite how they do it, and is willing to pay their high fees as a result.
那些典型的客户认为他们可以创造大量金钱，但并不确切知道他们是如何做到的，因此非常乐于支付他们高额费用作为回报。
Most people want to improve and will make an effort once they know how to do it.
大部分的人只要知道如何改进不足之处都会尽力去改进。
Most people want to improve and will make an effort once they know how to do it.
大部分的人只要知道如何改进不足之处都会尽力去改进。
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