The Institute's "Roots and Shoots" program is aimed at getting young people interested in environmental activism and leadership.

VOA: special.2009.11.18

We're going to look to some extent today and mostly next Tuesday at the roots and origins of an anti-slavery ideology, a growing anti-slavery ideology in its many layered forms.

今天讲一部分内容,下周二我们重点会讲到,反奴隶意识形态的根基,那是一个蔓延在许多阶层中的,反奴隶制意识形态

耶鲁公开课 - 美国内战与重建课程节选

But at the same time, as Darwin well knew, emotions have universal roots that are shared across all humans and across many animals.

但同时，正如达尔文所说，情感在全球是相通的,被所有的人类和动物共享。

耶鲁公开课 - 心理学导论课程节选

Rain,snow,ice,wind, and plant roots rubbed away at the top of the new canyon.

VOA: special.2009.10.07

At a time when Country-pop is dominating the genre, the label allowed Easton to stay true to his traditional roots.

VOA: standard.2010.04.09

Opponents have already spent millions of dollars on television ads aimed at whipping up grass-roots opposition to the Obama plan.

VOA: standard.2009.07.31

"Fatah stands at a point where it will continue to organize the process of defending the holy sites through popular effort and grass-roots mobilization,".

VOA: standard.2009.10.05