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This suitcase had--instead of having four little wheels on the bottom, it had two wheels on the back.
这种旅行箱不是四个轮子都在底部，而是在后面有两个轮子。
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Oh, that goes actually way back time when we were like little kids like, four years old,
哦，那其实要追溯到我们是小孩子的时候了，四岁的时候，
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Now just working with the four-note motive here-- A strange little dissonant chord there resolving to consonance.
现在四音符的动机出现,这有一段有点不和谐的和弦,解构成和谐音
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He had a suitcase that--I don't know exactly, something like this--had a strap that you'd pull it along and it had four little wheels on the bottom and it worked.
他的行李箱。。。我知道的不太确切，应该是这样的，那上面有一条带子,你可以拉着它,而箱子底部有四个小轮子可以使箱子滑动。
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It's just a little block of memory in RAM, you know, that represents four bytes, 32-bits and the Number Two is currently in it.
它只是一小块内存块，它表示4个字节，32位,那个数字2就存储在里面。
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Okay, so with your little clicker you can press one, two, three, or four depending on which one of these you believe is the case and let's see if the--if it registers.
拿着表决器的人可以,根据你认为的答案 在一到四中任一项,然后看看它是否注册了
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and it's, they're just like four, five, six years old little kids
这些儿童大概四五六岁。
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What kind of themes? Let me talk a little bit about some of them. Let me just talk about, oh, about three or four of them, just so you can see what hopefully you'll be getting yourself into.
什么主题,这方面我说一说,我就说说,其中的三到四个,这样你就能明白,你要学什么
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So I work four different trains. And they're all little different.
所以说我在四列火车上工作。它们区别不大。
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If I had a beaker sitting on the table here and it contained a million blue double stranded DNA molecules and a million red double stranded DNA molecules and I heated it up and added a little base, I'd soon have four million individual strands just floating around in the solution because I've broken up this hydrogen bonding and the DNA molecules fall apart.
假如我这里有一个烧杯 里面,盛有一百万条蓝色DNA双链和,一百万条红色DNA双链,然后我稍微加热一下烧杯,并且加一些碱,很快我就有了四百万条DNA单链,漂浮在溶液里,因为我已经使得氢键断裂,DNA双链也随之打开
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