His work to battle world hunger is credited with saving millions of people from starvation.

VOA: special.2009.11.10

Okay, so let's talk about the example of smallpox, which is one of the world's great successes in the battle against infectious diseases.

我们现在来谈一谈天花,它是人类与传染病的斗争中,获得的一项伟大胜利

耶鲁公开课 - 生物医学工程探索课程节选

Who should our partners be and how should we engage them?" On Thursday, leaders of major industrial and developing countries met in London to battle the world recession.

VOA: special.2009.04.04