We have what at first seems like a pretty attractive theory, but then, how do you explain the fact that this has happened before?
我们提出了一开始看起来很有吸引力的理论，但是接下来，你要如何解释以前也发生过这种情况呢？
Some people believe whatever has happened before or is happening now will repeat itself in the future.
有些人相信过去发生或现在发生的一切将来都会重演。
这种变幻以前曾经发生过。
Everything seems to have never happened before.
一切似乎从来未曾发生。
We know this, Keith says, because it’s happened before.
基思说，我们了解这种情况，因为以前就发生过。
It also connects the web and the world in ways that have never happened before.
移动先行体验还以一种全新的方式把网络和世界连在一起。
What we're suggesting is the declines happened before the Clovis toolkit was adopted.
但是我们认为猛犸数目的减少发生在克洛维斯人应用他们的工具之前。
Daughter: the teacher keeps asking me about the things that happened before I was born!
女儿：历史老师老讲些我还没出世前的事！
Whatever happens in the stock market to-day has happened before and willhappen again.
股市里所有今天发生的事在过去已经发生过，而且还将会发生。
They have pasts, often going back to events that happened before you were even born.
他们有过去，经常回想那些甚至发生在你出生以前的往事。
That has happened before, but typically when the markets are strong and IPOs are flooding out.
这在以前也发生过，但一般是在市场走势强劲，IPO纷纷出笼的时候。
And that got me to thinking: What if there were no Fed? Don't laugh; it has happened before.
让我思考的是，如果没有美联储会怎样，别笑，之前这种情况已经发生过。
Whatever happens in the stock market to-day has happened before and will happen again. I've never forgotten that.
在股票市场过去发生的事情在以后还是会在发生的，这个规律我永远也忘不了。
Which was very weird, as this had never happened before, and the kitchen is where I kept their food and water.
这也很不寻常，因为之前这种事从没发生过，而且狗粮和水也是放在那儿的。
The things you encountered today appeared to have happened before, only the trivial details were somewhat different.
你今天遇到的事情，从前好像已经遭遇过了，只是细枝末节有点不同罢了。
Sade sings as if there are plenty of reasons to leave, and as if this conversation has happened before, maybe many times.
沙黛唱得好像有千百种离去的理由，好像这样的对话曾经发生过，也许发生过许多次。
"I'm not saying this isn't going to take some new infrastructure," he says. "But it 's happened before, and the Internet is still here."
他说：“我并不是说这不需要采用新的基础设施，只是以前同样的问题出现时，因特网照样在运行。”
One day my watch told me I had been going for 60 minutes, which had never happened before. I ran another 12 minutes and got my first runner's high.
有一天我发现我可以跑60分钟了，这以前从来没有发生过，我又跑了12分钟，达到了我的一个新高度。
This is an activity that could never have happened before the age of electronics and a word that could never have happened before the age of globalization.
这样的活动，在电子化之前的时代是无法发生的。这个语词，也是在全球化之前的时代不会出现的。
If what you mean by "knowing" is the result of a past incident, a memory, a thing that has happened before, then it is the knowing of what has happened.
如果你说的“知道”是过去一起事件的结果、一个记忆、一件以前发生过的事情，那么它就只是知道已经发生的事情。
An outbreak in Bombay, India in 1904, for example, killed just three percent of the population despite the fact that it happened before the advent of antibiotics.
以1904年印度孟买爆发的一场瘟疫为例，即使这是发生在抗生素研发出来之前，也仅仅是杀死了百分之三的人口。
Every previous globalisation cycle except one (the one cut short in 1914) ended that way, and nothing in the current cycle seemed fundamentally different from what had happened before.
史上每一个全球化周期(除了1914年缩短了的一个周期外)结局都如此，而当前的周期从根本上于历史无异。
Everything that happens this morning - like Mark's decision to wear a blue shirt, or Bill's latest attempt to comb over his bald spot - is completely caused by whatever happened before it.
今天早上发生的所有事——例如张三决定要穿一件蓝色短袖，而李四呢则试图把头发梳来掩盖住秃掉的部分——都完全是因之前的事情所引发的。
When these cooperating processes get out of sync, we can experience déjà vu, the intense and often disconcerting feeling that a situation is familiar even though it has never happened before.
当这种相互作用变得不同步的时候，我们就会感受到似曾相识（也就是即视现象或即视感）这种感觉十分强烈，并且经常让人感到不安，你会觉得一个场景很熟悉，尽管可能你以前根本没有没有来过这里。
What we don't know is if the Big Bang is the ultimate origin of time or whether there was a time before that." (Read the Plus article What happened before the Big Bang? for more on this subject.)
我们不知道的是大爆炸是不是时间的开始或者时间在大爆炸之前就有了。
So I think we've been able to bring some of the capabilities that Rational has to help organizations do a better job of developing software to a wider range of clients than has happened before.
所以我认为，我们已经能够将Rational帮助各个机构更好的进行软件开发的能力带入到前所未有的客户范围中。
So I think we've been able to bring some of the capabilities that Rational has to help organizations do a better job of developing software to a wider range of clients than has happened before.
所以我认为，我们已经能够将Rational帮助各个机构更好的进行软件开发的能力带入到前所未有的客户范围中。
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