"We have a level of commitment that we have not had before, and that will change everything,".

VOA: standard.2009.12.03

What is that called when you change the fundamental pitch in a piece, going to a different pitch level?

当你改变曲子的音高的时候,这叫什么,改变音高的层级吗

耶鲁公开课 - 聆听音乐课程节选

Because if the change was not possible on the individual level, ? on the society level,why am I doing what I am doing?

因为如果从个人层面或社会层面来说，改变都是不可能的，那我在这里干什么？

哈佛公开课 - 幸福课课程节选

Earlier this year, President Barack Obama's administration said neither that engagement nor U.S.sanctions had brought about democratic change and that Washington would move to pursue high-level meetings.

VOA: standard.2009.11.02

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

"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

The report says there has been no change in the extremely poor level of respect for religious freedom in North Korea,where some of the as many as 200,000 people held in political prison camps are reportedly there for religious reasons.

VOA: standard.2009.10.26

It's about raising awareness and engaging people in the community so that they are part of this work" To promote change at the grassroots level, the city is building coalitions that bring together community and government agencies.

VOA: standard.2010.06.23