• Medical experts say small amounts of carbon monoxide over a long period of time can greatly harm an unborn baby.

    VOA: special.2010.02.02

  • And obviously within this long period many many different ideas and perspectives were involved within each side of conflict.


    普林斯顿公开课 - 人性课程节选

  • or if it's over a long period of time and it's an ongoing situation that you want to get rid of.


    I'm afraid of 课堂 - SpeakingMax英语口语达人

  • The unusually long period of cold weather has shown how even warm climates can sometimes freeze over.

    VOA: special.2010.01.12

  • Clearly, important information is to be conveyed to students from people who settle in the fields for a long period of time.


    麻省理工公开课 - 媒体、教育、市场课程节选

  • Doctors use it to control moderate to severe pain over a long period.

    VOA: special.2009.02.10

  • From 1983 to the present as you just said, the economy has a long period of smooth, robust expansion interrupted by two very mild recessions.


    斯坦福公开课 - 经济学课程节选

  • The results suggested that people do act differently if they think they are working with a group for a short period of time instead of a long period.

    VOA: special.2009.03.03

  • If he's going to sit there on one chord for that amount of time, it's going to go on for a long period of time.


    耶鲁公开课 - 聆听音乐课程节选

  • So,to get a sense of what the regional moisture patterns have been, dryness and wetness over such a long period of time in great detail, I would call it a kind of victory for paleoclimate science."

    VOA: special.2010.05.25

  • So, the process of developing a vaccine occurred over a long period of time.


    耶鲁公开课 - 生物医学工程探索课程节选

  • "This experiment is unique because six people will be isolated for a long period of time and will work autonomously."

    VOA: standard.2010.06.02

  • Now,that has changed, for sure; but,the centralization of the French government and the domination of Paris over the life of the nation is very difficult to change, over a long period of time.


    耶鲁公开课 - 1871年后的法国课程节选

  • No single space project in this period will be more impressive to mankind or more important for the long range exploration of space.

    VOA: special.2009.07.08

  • They can be on store shelves for a long period of time, and that has to do with the economics of food, especially food available to the poor, which we'll discuss later.


    耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

  • Long-period comets,however, may take several hundred years to orbit the sun.

    VOA: special.2011.02.09

  • There was certainly a long period of time in which I found the personality theory, that is,the personality theory with a no branching rule, to be the better and more plausible theory.


    耶鲁公开课 - 死亡课程节选

  • Each exercise period should be at least ten minutes long.

    VOA: special.2010.06.08

  • Even if you imagine that slaves did the work, you would need a hell of a lot of them, over a long period of time, and you had to feed them, if nothing else.


    耶鲁公开课 - 古希腊历史简介课程节选

  • "Now the Long March is for an indefinite period.

    VOA: standard.2009.03.15

  • Let's say that you've gotten into a disagreement and there's a long period of silence.


    Is there any 课堂 - SpeakingMax英语口语达人

  • The Final will not be held in the exam period, because I like to take long vacations.


    耶鲁公开课 - 心理学导论课程节选

  • Stocks have paid 4% more a year over this incredibly long time period than short-term bonds.


    耶鲁公开课 - 金融市场课程节选

  • The period, that's right. So, it's going to take one period to move that long. And another way 1 we can say period is just 1 over nu or 1 over the frequency So, now we know both the distance traveled and the time the elapsed.


    麻省理工公开课 - 化学原理课程节选

  • Let's say oftentimes orchestral musicians, they're sitting there and they're not playing so they have to be able to count for a long period of time.


    耶鲁公开课 - 聆听音乐课程节选

  • That's where I--once that gets going, it goes for a long period of time.


    耶鲁公开课 - 聆听音乐课程节选

  • He has data for a very long time period, 1802 to 2006, for the U.S.


    耶鲁公开课 - 金融市场课程节选

  • That's where you're just asked over a period of time, how often you eat this list of foods and you're given a very long list of foods.


    耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

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