Somalia,which has been plagued by civil war for nearly two decades, has Africa's third largest IDP population after Sudan and the Democratic Republic of Congo.

VOA: standard.2009.10.23

That has moved around a lot, but it got almost up to 60% in the post World War II period and now it's down to less than a third.

计算所得的百分率变动很大,二战后,它一度达到将近60%,现在又降到不到三分之一

耶鲁公开课 - 金融市场课程节选

Studies suggest nearly a third of war correspondents suffer from Post Traumatic Stress Disorder (PTSD).

VOA: standard.2010.07.01

Born to Puerto Rican parents, who moved to New York during World War II, Sotomayor would be the first Hispanic to serve on the Supreme Court and the third woman.

VOA: standard.2009.05.30