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So, it's awkward to have to wait for a cow to get infected before you can vaccinate a population.
在给人们预防接种之前,你只有干等着,直到有一头奶牛感染了病毒才行
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and then I worked in an auction house; "Christie's", for a year before applying to come back to graduate school.
在我申请研究生院之前我还在佳士得拍卖行工作了一年。
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Just before we go any further, notice that really this is the same basic market we looked at before.
在进一步讲解之前,请注意这是跟,之前学过的基本市场一模一样
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It's going to do a lot of type checking for you before it actually passes things back.
它会在将输入值进行计算之前,做很多类型检查。
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He saw her from the bottom of the stairs Before she saw him.
他在楼下看着她,在她看到他之前。
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So he never makes it in there, he never gets in before the Israelites conquer.
他从未在那里生活，在犹太人之前，他没有居住在那里。
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On the one hand, he wants to wait before he talks.
一方面，他想在他说话之前先等一等。
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But that was before taking positive psychology class. That was before taking the class.
但那是在上积极心理学课之前，是在上课之前。
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And that operation is being performed before others.
并且那个操作是在其它操作之前的。
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We'll do all this next time before we get into Saussure.
我们会在下次讲索绪尔之前讲到这点。
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It could still be the case that we die before life has turned bad.
有可能我们在生活变糟糕之前便死了。
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I think I might want to take it down before he comes.
但在他来之前我得把这篇文章撤掉
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That is just what we have seen before.
这就是我们在之前所见过的。
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Now, I'll first, before getting into details, make a definitional point.
在详细讨论之前,我想首先下一个定义
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I was born before 1970, I got a smallpox vaccination.
我出生在一九七零年之前,我接种过天花疫苗
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Before he was guillotined he dictated his life.
他在被送上断头台之前述说了他的一生
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I'm generally pretty impressed by what the, what my classmates have gotten up to before they came to school here.
我的同学在入学之前已经完成的事情让我印象深刻。
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All right. So let's try one more example of drawing Lewis structures before we talk about formal charge.
好，让我们在讲形式电荷之前,再给一个例子画一下路易斯结构。
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We were lucky to raise the first round of money before the Internet bubble burst.
幸运的是，我们在泡沫破灭之前,完成了第一轮融资。
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You can find the equation, but you've got to think a little bit before you solve everything.
你能写出方程式,不过在解题之前你最好能稍作思考
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That has to do with what kind of human-being you want to be before you die.
而与你在死之前到底想做,一个什么样的人有关。
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You see, before he died, Bentham addressed himself to a question consistent with his philosophy.
在他死之前，边沁身体力行了他自己的哲学。
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Before that no word was needed because there was no such thing.
在此之前,没有这个词,因为这是前所未有的
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And before that, he was a Deputy WHCS.
在那之前，他是白宫办公厅副主任。
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Let's focus on a couple of lessons of the class before I come back to this.
在继续讲下面的内容之前,我们先来回顾一下上节课的结论
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At least two weeks before the quiz.
至少在测验之前两周。
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Before that, as I said before, insurance is really the same thing as securities.
在这之前,正如我前面所说,保险实际上和证券是一回事
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You've got to learn to crawl before you learn to run.
在你学会跑之前你得学会爬。
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The whole thing wiped clean,complete perfect amnesia before I torture you.
在我折磨你之前，一切都会被洗得干干净净。
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Before Rosenthal, they didn't see children on the bus.
在那之前，他们没注意到车上的孩子。
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