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Experts in world population growth spoke at the National Press Club in Washington.D.C. recently about the Population Refrence Bureau's or PRB's anunal data sheet.Carl Haub is the demographer with the PRB.

最近，世界人口增长方面的专家在华盛顿特区的国家记者俱乐部关于人口咨询局的年度数据表做了发言
"on the population data sheet is an annual of demographic survey,in which we gethered a demographic population statistics from all countries of the world."

“人口数据表上的是一个年度的人口统计调查，世界上所有的人口统计都被囊括在了里边。”
This year,the data coverd a variety of issues affecting population [threat?](grouth 十分不像) such as AIDS and clean watering (watering and 注意连读)sanitation.But the report's main emphasis was on the effects of migration on the world's population.

今年的数据包括了多种影响人口增长的因素，如艾滋病，清洁的排水和卫生问题。但是，报告主要强调了移民对世界人口的影响。
While it is common for people from poor countries to migrate to developed wealthier nations.Experts found there was also migaration between devoloping countries,for example, from Guatemala to Mexico.

在人们从贫苦国家移居到相对富裕的发达国家成为普遍问题的时候，专家也发现发展中国家也存在着人口迁移，例如，从危地马拉迁移到墨西哥。
Here are many number reasons for this trend, says Richel Newgent of the U.S. National Institute of Health.
"people from very poor countries going to less poor countries,people fleeing wars and conflict,people responding the (to)population pressures"

造成这种趋势的有很多原因，美国国家卫生协会的Richel Nugent说。

“人们从非常穷困的国家去往补那么贫苦的国家，人们逃离战争和冲突，人们对人口压力作出反应。”