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So at this point in the story-- at this level in the story, if you will, I've touched one, two, three, four numbers total or I've made two comparisons.
那么这时，我总共已经动过了1，2，3，4个数字,或者说我做了两次比较。
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Ok, well... I actually, I've only been on two dates on "OkCupid".
好吧，其实我也只是在OkCupid上相过两次亲。
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So if you flip the info page over on the back here, what you'll see is the periodic table, this is the same one that I've handed out in the last two lectures - the periodic table without any electron configurations.
将这张纸翻过来，你可以看到一个元素周期表，这与我们前两次课发过的,是一样的,-没有任何电子排布的周期表。
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Suddenly the vision begins to transform and he begins to hear the voice of Paul, "Thrice was I beaten, twice was I imprisoned, in shipwrecks often, in peril often."
突然之间，视觉的幻想开始改变,他听到了保罗的声音，“我被人打过三回，囚禁两次，经常受苦受难“
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And I should've said there's two quizzes and a final exam.
而且我应该已经提过了,一共有两次小测验和期末考试。
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Listen, the two periods in American history 1945 1890 to 1945 The economy suffers 3 contractions of 5 percent, 15% 2 of 10, and 2 of almost 15 percent.
听好，美国历史上的两大时期,第一时期是从1890到5,经济遭受过三次紧缩率为5%的经济紧缩，两次10%，还有两次高达。
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For all I could tell, people did equally well but this experiment has been done tens of thousands of times and you could do it yourself on a computer screen.
据我所听到的，两次都差不多,但这个实验做过几十万次,你们可以在电脑上做。
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Now, I've talked about laughter on two separate occasions and on each of the occasions when I talked in front of a large group like this somebody came up to me afterwards and said, "But I can."
我之前也有两次提到过笑,第一次,当我在这么一大群人面前讲完后,都会有人上来跟我说，“我可以”
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This word for ark, tevah, occurs exactly twice: tevah here, and in the story of Noah's ark. Noah's ark is a tevah.
方舟这个词，tevah，仅出现过两次：,这里，还在诺亚方舟中，诺亚的方舟也是。
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What's happened actually if we base it in the last 25 years since the early '80s We've just had two recessions and they've been very mild by historical standards and...two--now three long expansions in between.
实际上是什么情况呢,80年代初期以来，这25年当中,我们只经历过两次经济衰退,而且在历史上算是相对轻微的,其间则是两，三次长时间的经济增长。
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