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There are many kinds of work. There's electrical work, take the motor, you plug it into the wall, electricity makes the fan go around, that's electrical work. There's magnetic work.
我们复习一下大一,学过的功的概念：,物体在力的作用下，运动了一段距离。
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And we have this myth that if you go into more than 3 libraries in your freshman year, you will not graduate.
我们有这样一个传说，如果你在大一的时候去过三个以上的图书馆，那你就毕不了业。
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So if you've been thinking you're, like, the only senior here who's taking this course: not at all, there's about a hundred of you, there's about a hundred juniors, there's a couple hundred sophomores and about a couple hundred freshman.
如果你觉得你是这门课程中的，唯一的一个毕业班的学生：那你们错了，这里有大约一百个毕业班的学生，大约一百个大三的学生，一两百个大二的学生,还有大约一百个大一的新生。
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So, aluminum is about 50% denser than magnesium.
所以铝的密度比镁大一倍。
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We know that there are some students here who don't have roommates but the majority of our first year students have roommates.
我知道，在这里的有些学生,还没有室友,但是大多数的大一新生,是有室友的。
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So the first thing about this is we're really reintroducing the experiments back into freshmen physics.
因此最重要的一点是,我们确实将实验重新引入,到大一新生的物理课上。
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Yes, I have. Freshman year, I was having a lot of trouble in my Physics class, and
是的。大一那年，我在物理课上遇到了很多难题，
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Why do you take so many intense courses even though you're still a freshman at Berkeley?
在伯克利分校，你还是个大一新生，为什么要选那么多的课呢？
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So as a freshman, I was only involved in one club, and I was taking classes.
大一的时候，我只参加了一个俱乐部，还上课。
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The strategic goals are the following: course six we want to help prepare freshmen and sophomores who are interested in majoring in course six to get an easy entry into the department, especially for those students who don't have a lot of prior programming experience.
以下是关键的目标：,我们希望帮助对于通过主修,从而进入本系这条捷径,非常感兴趣的大一大二生，尤其是那些,以前没有编程经验的人。
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As long as we have five it will go; but, it's really fun and you'll know people around here, if you're above a first-year student who have taken this, and it really rocks, it's really great. And Brian Reilly is going to do this.
不过只要有五个这课就开,不过这门课真挺有意思的,而且你能在这认识一些人,如果你比那些上过这门课的大一新生强的话,真挺带劲的,真的不错,布莱恩·莱利负责法语课程
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So, in my freshmen year, there's like a science requirement that we have to take
所以，大一的时候，我们必须参加一个科学的课程，
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But in that way I know you are closing " So if you're freshman write "one", " if you're sophomore, write down "two".
这样标记只是为了方便记住你,如果是大一新生，写上“一，大二的话，写上“二。
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Please don't anybody tell me late - any time after today you didn't know when the mid-term was and therefore it clashes with 17 different things.
所以以后千万别跟我说,你不知道什么时候期中考试,然后还在考试那天安排大一堆事儿去做
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He'd been diagnosed with, if I recall correctly, cancer as a freshmen--and his doctor had told him that he pretty much had no chance of recovery and indeed had only a couple more years to live.
他大一的时候就被诊断出癌症，如果我没记错的话--他的医生告诉他,他基本上没有治愈的可能了,并且实际上只有几年时间存活了。
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And I took a class when I was a freshman, called the First Year Seminar,
我大一的时候还上过一门课叫新生研讨会，
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I'm not sure if I'm ready to invest that much money right now.
我不清楚我该不该把这么大一笔钱拿去投资。
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and basically the advantage of taking them in your freshman year is
而且基本上大一修这些课的好处就是
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Yeah, I'm a freshman, so it's, I'm not quite set on it,
是，我大一。所以，我也没有确定，
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Mostly it's a lot of freshmen and then sometimes some sophomores.
大部分是大一新生，有时候有些大二的。
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my freshman and sophomore years from Hollywood.
大一大二的时候从好莱坞坐车上学。
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In university my first year,
在我大一的时候，
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It helped me in my mind sort of take that step that I was otherwise just a little too hesitant to take in my freshman year.
当初这让我下定决心,虽然当时我还有点犹豫不决,那是在我上大一的时候。
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I've been here in MIT for thirty years, and in the early nineties I taught the large freshmen physics course, and electromagnetism.
我麻省理工工作三十年了，在上世纪九十年代初,我就开始给大一新生上物理课，以及电磁学。
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Perhaps a mistake with some of the answers we got but one of our choice favorites was this one and it's actually fairly worth drawing one's attention to and that's this: I planned on taking the class as a freshman then convinced myself otherwise because I couldn't fit it into my workload.
得到的回答或许有的是错的,我们最喜欢的一个回答是这样的,值得我们注意一下：,我本打算大一就来上这节课,但却说服自己还是别去上了,因为我工作负荷满满的。
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Umm, it was my freshman year. It was the first semester, so I came back.
那时是大一的第一学期。等再开学，
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It's very easy to get caught up in one's own studies here; and even I freshman year, dove into a world very much familiar to me-- a world that I did like but I just didn't realize that there were in fact worlds that I loved well beyond my domain of familiarity.
在这里，你们会很容易陷入封闭学习的误区;,我上大一的时候，学习的是自己熟悉的专业领域,我很喜欢那个专业但却没有意识到,我对其他领域的爱好,早已超过了我对本专业的爱好。
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Is it required for freshman?
这是大一新生的必修课吗？
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It's a freshman,
它是大一新生上的，
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