But the F.A.O. representative in Liberia warned about spraying pesticides from airplanes because of the risk of additional water pollution.

VOA: special.2009.01.27

I'd like to introduce a representative from "Teach for America" which is an organization that has done and is doing a lot of good, promoting goodness in the world and I'd like to-- in 1504, we've been supporting them for the last 2 years and we'd like to continue to do that.

我想介绍一位来自“为美国而教“的代表“,这个组织一直致力于做好事，在世界上宣扬善，我想…,这门课，过去两年一直向他们提供支持,我们希望继续下去。

哈佛公开课 - 幸福课课程节选

A food frequency--by the way, you also have the issue of whether the particular twenty-four hours that a person is interviewed is representative of their diet overall, because you can imagine how much your food intake varies from day to day.

食物摄取频率,顺便说下,还有一个问题,就是在选取的24小时里,测试者,是不是对总体有代表性,因为你可以想象,每天事物的摄入量都是不同的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The representative from the Pacific island nation of Tuvalu made an emotional appeal for a treaty with legal force.

VOA: special.2010.01.19

Third-term Representative Michele Bachmann is a Republican from Minnesota and a favorite of the Tea Party movement.

VOA: special.2011.01.10

Representative Joe Barton is a Republican from Texas.

VOA: special.2009.11.13

After the president's speech, the Republican response will be given by Representative Charles Boustany, a heart surgeon from the Southern state of Louisiana.

VOA: standard.2009.09.08

Next month,the former Alaska governor heads to Arizona to campaign for her former running mate, Senator John McCain, who faces a challenge in the Republican primary from former Representative J.D.Hayworth.

VOA: standard.2010.02.09