That is twelve percent more than last year, and equal to two-thirds of the world's population.

VOA: special.2009.11.02

I want to say a little bit about the cost of vaccines because this is a part of what makes it difficult to accomplish what's usually our goal in a vaccine development, which is deliver the vaccine to every population in the world.

我想谈谈关于疫苗的成本,因为这是令我们的疫苗发展目标,无法得以实现的困难之一,这个目标就是将疫苗送至世界上每一个人

耶鲁公开课 - 生物医学工程探索课程节选

Obviously it's something that the huge population throughout the world uses, so yeah, it's good.

世界上有一大群人现在正在使用这个产品，所以是的，很不错。

适合创业的旧金山 - SpeakingMax英语口语达人

The movie says that the world's shark population has dropped by an estimated ninety percent.

VOA: special.2009.04.03

That represents more than half of the world's population.

VOA: special.2010.04.20

And the research that's been conducted on chimpanzees so far says VandeBerghas,already benefited much of the world's population.

VOA: standard.2010.02.16

The United Nations has predicted the world's population will reach nine billion by 2050.

VOA: standard.2009.10.21

South Africa has less than one percent of the world's population.

VOA: standard.2010.05.29

Some economists say prices for rice, the staple food for much of the world's population, could be returning to levels that sparked inflation fears in much of Asia last year.

VOA: standard.2009.12.17

That's almost a tenth of the world's population."

VOA: standard.2010.02.16