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Abbas says this is why the military continues to lift curfews a few hours a day in some places to allow civilians to flee before troops take more aggressive action.
VOA: standard.2009.05.12
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I want to inspire you to take some more advanced courses albeit in another department.
我想鼓励你们选一些更深入的课程,尽管那是别的学院开的课
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Some things that actually wind up being really important take more than 10 years to get popular.
某些事需要10年，甚至更长时间,才会真正显现出重要性来。
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President Obama faces united Republican opposition to his health care reform plan, which would expand coverage to some 30 million more Americans, and take steps such as ending insurance company practices of denying coverage for pre-existing medical conditions.
VOA: standard.2010.03.10
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I'll take about five more minutes to finish up and that'll give us some time for questions.
大概五分钟结束,留给你们一些时间提问。
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Instead of taking that one vase, the thief could take two radios. And get more value. So the greedy thief, in some sense, gets the wrong answer. But maybe isn't so dumb.
这个贼可以带走两个收音机，这样总价值更大，因此这个贪婪的贼,在某种意义上没有得到正确的答案,但是可能它也不笨。
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Again, we're going to take the linear combination of those p atomic orbitals and make what are called pi or some more sigma molecular orbitals.
同样的，我们需要得到,原子p轨道的线性组合,然后组成我们所说的,π分子轨道或者sigma分子轨道。
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It expands. You change your constraints on your system, you heat it up some more, then you take the heat source away, and you put it back in contact with the atmosphere. And you cool it a little bit, change the constraints, cool it a little bit more, and heat, and you've got a closed cycle engine.
让它与大气接触冷却,改变约束，使它继续冷却，然后又再次加热,这就是循环热机，我们以前也研究过，更复杂的机器。
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So, that's something you will encounter in your review reading for the sections, that kind of review -- what we hope you have picked up from high school or will pick up quickly by doing some review. So, how about we have everyone take ten more seconds on the clicker question, get your final answer in here.
如果你们预习这部分就会看到它,我们希望你们，通过这样的预习能,快速的把高中,所学的都回忆起来,好，我给你们每人10秒钟回答,这个问题,在这里给出,你们最后的答案。
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