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You can brute force it and unfortunately, the so-called Caesar cipher is not very secure because if you assume, for our purposes in English alphabet with 26 characters, say all lowercase for all uppercase, my God, you only have to try like 24, 25, 26 possible rotations until you can figure out what his secret message is.
你可以强行解密但是不幸地是，所谓的凯撒密码不是很安全的,因为如果假设，对于我们的26个字符的字母表,指明所有的小写为大写，我的天，你只要试24，25次，26次就可以解答出,密文的内容。
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There are a lot of volunteer kind of programs that you can do for a couple of years until you can find a job.
有许多志愿者项目，你可以参与几年，直到你找到工作。
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You can adjust those grades, let's leave it until next week and we can take it at a leisurely pace.
你可以更正你的成绩，让我们一直延续到下周,我们可以在一个休闲的地方。
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You can't go to school in this country, and in many countries, until you've had your prescribed set of vaccinations.
在我国,接种规定的疫苗之前,许多国家也一样,你都不能去上学
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The mathematical theory of probability was unknown until that time and you can see that insurance suddenly made an appearance at that time.
在那之前,概率的数学理论,是不存在的,而随着概率论的出现,保险业也突然出现了
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But there was an exhibit of jellyfish, I know at least until last year, at the Boston Museum of Science, and all of you guys can get in there free.
但那以前有水母的展示，我知道至少去年有，在波士顿科学博物馆，你们都可以免费去看。
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And you can see it wrapping its way down, cutting in half at each time until it gets there, but it takes a while to find. All right.
但是这也花了一点时间来搜索，好，让我们看看100万，或者1000万是不是在数组里。
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You can't have a notion of "raw" until you have the notion of "cooked."
你不可能有“生食“这个概念“,直到你“熟食“这个概念的出现“
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They're not due--the first one's not due until next Monday or Wednesday, so you can pick any three days to do it during that period of time.
第一份作业的截止日期是下周一或三,因此你可以任意选择三天来记录饮食
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In the early days when there are four or five formulas, you could memorize all of them and you can try each one of them until something works, but after a couple of weeks you will have a hundred formulas and you cannot memorize all of them.
刚开始我们只会涉及到四,五个公式,你可以全部记下来,你可以一个一个试,直到解出答案,但过了几个星期,你就已经学了一百多个公式了,你没法全部记下来
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so it's... pretty near finals. So you can drop any classes you want up until the drop date with like no penalty.
所以……蛮接近期末考试的。所以在退课日之前你可以不受任何处罚退课。
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I would be grateful if you would wait until that point if at all you possibly can. It just makes the whole thing work a little easier and it prevents that drop in the pit of my stomach when I see half of the class leave.
我将感激不尽,这样会好一点,以免我看到半数人走掉时,心情会受到影响。
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I can adjust the grade right up until the moment you get your degree.
我可以立马更正成绩,直到你得到毕业。
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You can see that in all these countries real estate prices didn't show much trend until recently and now they all have real estate booms.
由图表中可见,这三个国家的,地产价格一直没有明显趋势,只是近年来才出现繁荣
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for exam 2, you still need to know and understand everything you learned in exam 1, but you can put off learning it completely until we get through, at least, next Wednesday before we start maybe spending time on these concepts outside of class.
为了掌握第二次考试的内容，你仍然需要知道和理解,在第一次考试前所学的全部知识，但是你可以先放一放，等到我们进行到，至少在下周三我们可能开始不在课堂上,讲这些内容之前。
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You can see the different points-- I've calculated this using data from 1983 until 2006-- and I computed all of the inputs to those equations that we just saw.
你可以观察不同的点-,我用从1983年到2006年的数据-,代入我们刚教授的等式,进行了计算。
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The expected life spans increased dramatically in the last couple of hundred years until now, for people that were born when you were born you can expect to live to be 80 years old, a doubling in life span, fairly dramatic.
从几百年前到现在,预期寿命显著增长了,你们同期出生的那批人,能够活到八十岁,预期寿命增长了一倍,令人印象深刻
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So from that point on it'll be exam 2 material, so depending on how you like to come compartmentalize your information, you can separate that in your brain in terms of what you're trying to learn right now versus what you can put off until a little bit later.
因此从这里开始以后的是第二次考试的内容，当然，取决于你喜欢怎样划分,你的信息，但你可以将你现在要学的,与你以后才学的知识,在你的大脑中分开储存。
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Things like steel and polymers, or plastics, and ceramics, and of course computers which has progressed remarkably due to the work of engineers in your lifetime, until now you can carry around a cell phone, which would have been unthinkable even 30 years ago.
包括钢铁,聚合物,塑料,陶瓷,当然,计算机这个在你们的有生之年,已经取得令人瞩目的进展的发明,也得归功于工程师的工作,现在你们的手机能随身携带,而这在三十年前是不可想象的
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There's nothing more exciting to see with your glasses on, while you look nice. You can take those off if you wish to, or you can try to just be splitting the light in the room until the TAs grab your glasses, either is fine.
虽然你们戴着眼镜很好看，但现没什么东西需要戴着看了，你们可以拿掉了,或者你们在助教收上来之前，试试看分开屋里的光。
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So what actually turns out the reality is that h e 2 does exist, but it exists as the weakest chemical bond known, and it wasn't, in fact, even found to exist until 1993, so I can assure you this is not a bond that you see very often in nature, and it is a very, very weak bond.
实际上He2键是存在的，但它是目前所知的最弱的键，直到1993年它才被发现，所以我可以向你们保证在,自然界你们不可能经常看到它，它是种非常非常弱得键。
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