"I think we're going to get the upper level winds carrying that ash down for a few more days yet until the upper wind patterns change which will probably not happen until the time frame Thursday-Saturday.

VOA: standard.2010.04.17

So people change-- up or down in their level of happiness is a result of their experiences.

人们的快乐水平会上下变化,这是他们的经验之谈。

哈佛公开课 - 幸福课课程节选

They can push down the thirteenth partial and bring up the fifteenth and thereby change the sound of a clarinet into a French horn.

压低第十三分音,或者提高第十五分音,从而将单簧管的声音变成圆号的

耶鲁公开课 - 聆听音乐课程节选

"Between now and the end of 2011 when all US troops are scheduled to depart Iraq, we have a number of important milestones to achieve, including fair and secure elections, the seating of a new national government and a continued draw down of U.S.forces leading to our change of mission in August 2010,"

VOA: standard.2009.07.28

It is clear that we can change happiness levels,up or down."

显然，我们能改变快乐水平，变得更高或更低“

哈佛公开课 - 幸福课课程节选

It has many of the opposite effects that insulin has, so not only does insulin go down and stop these behaviors but a new hormone called glucagon gets produced which reinforces that change.

它产生的很多效应都与胰岛素相反,所以不仅是胰岛素的减少,导致血糖水平停止下降,胰高血糖素这种新激素的产生,也会强化该效应

耶鲁公开课 - 生物医学工程探索课程节选

So if you haven't clicked in yet, or if you want to change your answer, keep in mind that you might need to jot down, - for example, a Lewis structure before you can answer this question.

如果你还没有点答案，或者你想改变你的答案，记住你也许需要在回答问题前写点东西，比如画一画Lewis结构,来得到最终。

麻省理工公开课 - 化学原理课程节选

He's trying to relax us here by slowing down the rate of harmonic change here.

他希望通过减慢泛音的变化速度让大家在这里快要睡着了。

耶鲁公开课 - 聆听音乐课程节选

The rate of harmonic change has slowed down considerably here.

泛音的变化速度减得相当慢。

耶鲁公开课 - 聆听音乐课程节选