U.N.High Commissioner for Refugees Antonio Guterres hailed the document, noting that Africa, which has roughly half the world's displaced people, is the first region to agree on rules for protecting them.

VOA: standard.2009.10.23

Very high correlation between the two which in many ways gives credence to the many years of research that has been conducted, before we have the technology to do it in a more sophisticated way.

两者有很大关联，这在很多方面,给多年来进行过的研究提供了可信度，在拥有技术进行更全面的研究之前。

哈佛公开课 - 幸福课课程节选

Is it little wonder that job growth is lagging in our economy?" The president says he is not surprised that Americans are angry that the jobless rate remains high, and that this has hurt his approval rating, which stands at about 50 percent.

VOA: standard.2010.02.06