It does not know to which container an iterator is bound, nor does it know how many elements are in a container.
编译器无法知道迭代器所关联的是哪个容器，也不知道容器内有多少个元素。
I won't know how successful it is until an accountant has gone over the books.
我要等到会计仔细查看了账目后才会知道盈利状况如何。
"But how long can you stay in the house?"—"I don't know. It depends."
“但你能在这屋里待多久？” — “不知道，这要看情况而定。”
Miss Allan beamed at him. "You are clever to guess. I'm sure I don't know how you did it."—"Deduction," James said.
阿伦小姐对他笑道：“你很会猜，我确实不知道你怎么办到的。”——杰姆斯说：“推论。”
It's more than likely that the thieves don't know how much it is worth.
盗贼很可能不知道此物的价值。
Do you know how it is when you see someone yawn and you start yawning too?
当你看到有人打哈欠时，你也会开始打哈欠，你知道这是怎么回事吗?
I wish I could say another time would be okay, but you know how it is, everybody's already got commitments for the whole semester.
我希望我可以说再换个时间就行了，但你知道这是怎么回事，每个人对这整个学期都已经有需要承担的义务了。
I love your home. There so much potential here I know exactly how I would decorate it.
我喜欢你家。这有很多的可能性，我确切地知道我该怎么去装修它。
"I know how to play chess, let me go and show these kids how to do it," he said.
他说：“我知道如何下棋，让我去向这些孩子们展示怎么下。”
"I know how to play chess, let me go and show these kids how to do it," he said.
他说：“我知道如何下棋，让我去向这些孩子们展示怎么下。”
Each episode will focus on a different area of science and tell us what we know, how we know it, and what we still don't know.
每一集都将聚焦于一个不同的科学领域，告诉我们，我们知道什么，我们是如何知道的，以及我们仍然不知道什么。
The sale was completed. "I don't know how it works. It just does." said Mr. Azar who learned the trick from another clerk.
交易完成了。阿扎先生说：“我不知道其中的原理，但是就是行得通。”这是他从另外一名员工那里学来的小窍门。
The sale was completed. "I don't know how it works. It just does," said Mr. Azar who learned the trick from another clerk.
交易完成了。阿扎先生说：“我不知道其中的原理，但是就是行得通。”这是他从另外一名员工那里学来的小窍门。
Like most tools, you need to know when and how to use it to the best advantage.
与大多数工具一样，您需要知道何时以及如何充分利用它。
You know that Snort is an intrusion detection system, but how does it detect intrusion?
您知道Snort是一种入侵检测系统，但它是如何检测入侵的呢？
People wanted to know how they had blundered into war, and how to avoid it in the future.
人们想弄清他们怎么会错误地卷入战争，将来如何才能避免这样的事。
It is odd that parents and children who spend a lot of time together still don't know how to communicate with each other.
父母和子女相处时间很长，却仍不知道该怎么和彼此交流，这真是奇怪。
It should not be a completely alien user experience. The user still needs to know or easily figure out how to get done what they need to get done.
它不应该是完全陌生的用户体验。用户仍然需要知道如何更容易去完成他们的事情。
It isn't actually known how many sites there are across Australia where rock art can be found—but unfortunately, we do know that much of the art is being lost to us.
目前还不知道在澳大利亚有多少地方能够发现这种岩石艺术；但不幸的是，我们知道有很多艺术作品正在消失。
"It will come again," the grandfather called up from below; "how could I know that you were coming back?"
“它很快就会被搬回来的，”祖父从下面喊道，“我怎么会知道你要回来呢？”
We know very little about the brain and how it deals with simultaneous conflicting input, but every common-sense intuition suggests we should be profoundly alarmed.
我们对大脑知之甚少，也不知道它如何处理同时出现的相互冲突的信息，但所有的常识直觉都告诉我们，我们应该对此深感震惊。
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。
You have to know where the vowels are supposed to go, and that makes it harder to learn how to read.
你必须知道这些元音都应该加在哪，这使得学习如何阅读变得更加困难。
Since you're going to university in England, do you know how much it is for international students to study there?
既然你要去英国上大学，你知道国际学生在那里学习要花多少钱吗？
Here are some of the important proposals in the House and Senate bills to try to address those problems, and why it is hard to know how well they will work.
以下是众议院和参议院法案中试图解决这些问题的一些重要建议，以及很难知道它们的效果会如何的原因。
I didn't know yet how to judge distance, and when a big truck came near it seemed like its wheels would just come right over me.
我还不知道如何判断距离，当一辆大卡车靠近时，它的轮子似乎就会从我身上碾过去。
We do not even know, for example, how many stars have planets, and we certainly do not know how likely it is that life will arise naturally, given the right conditions.
例如，我们甚至不知道有多少恒星有行星，我们当然也不知道如果有适当的条件，生命自然出现的可能性有多大。
You all know how when you take a crystal prism and pass a beam of sunlight through it, you get a spectrum, which looks like a continuous band of rainbow colors.
你们都知道，拿起一个水晶棱镜，让一束阳光通过它，就会得到一个光谱，看起来就像一条连续的彩虹色带。
If you have small children, you know how difficult it can be to find and pay for a baby-sitter.
如果你有一个小孩儿，你就会明白找到一个婴儿保姆并给他酬劳是多么的困难。
If you do what you like, then you know how it feels to be calm, relaxed and balanced.
当你在做你所喜欢做的事情时，你就能够体会到什么叫平静、放松和平衡。
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