U.S.-Venezuelan relations have been tense in recent years, although both nations agreed this year to seek a relationship based on mutual interest.

VOA: standard.2009.09.24

But just to make sure, to stimulate interest, every Tuesday in recitation there'll be a ten minute quiz based upon the content of the homework.

但是只是确认一下，为了激发你们的兴趣，每周二的背诵课,将会有10分钟的测试,内容则是基于你们的作业。

麻省理工公开课 - 固态化学导论课程节选

Caroline Smith DeWaal, director of food safety for the Washington DC-based Center for Science in the Public Interest.

VOA: standard.2010.05.27

The U.S.representative says Washington seeks to build cooperation based upon mutual interest and mutual respect.

VOA: standard.2009.09.14

The Canberra-based team says it has received interest from around the world.

VOA: standard.2010.07.24

"There's a very shrewd economic profit-based interest system here at play and there are people on the Egyptian side and in the government of Gaza who are finding ways to benefit from this structure."

VOA: standard.2010.06.17

The Washington-based Center for Science in the Public Interest, or CSPI, notes that a 2005 report from the U.S.Institute of Medicine found that marketing to children makes them more likely to ask for and eat unhealthful foods.

VOA: standard.2010.06.24