| 1. | Professor antonio golini is a demographer at the university of rome
罗马大学安东尼奥教授是位人口统计学家。 |
| 2. | Demographers say a rate of 2 . 1 is needed to keep a population from declining
人口统计学家指出，生育率必须达到2 . 1 ，才能防止人口减少。 |
| 3. | Arab - americans make up 3 million of the population in the united states , according to demographers
人口统计学家称，目前阿拉伯裔美国人共有三百万。 |
| 4. | Demographers have calculated that the world ' s population will double by the end of the twentieth century
人口统计学家推算到了二十世纪末世界人口会加倍。 |
| 5. | Millions of soon - to - retire baby boomers , say demographers , will propel this trend for years to come
人口统计学家称，成百万行将退休的战后一代将此趋势烧得更旺。 |
| 6. | Demographers also expect strains on the household registration system , which restricts internal migration
人口统计学家同时预测阻碍国内移民的户籍制度将受到压力。 |
| 7. | Demographer william frey says immigrants with young families will help keep the united states competitive
人口统计学家佛瑞表示这些年轻的家庭会帮助美国保持竞争力。 |
| 8. | Demographers expect the global population to peak at around 10 billion ( it is now 6 . 5 billion ) by mid - century
人口统计学家预测，到本世纪中叶，世界人口总数将接近100亿（目前为65亿） 。 |
| 9. | One demographer has said the 300 millionth person would likely be a latino boy given current u . s . population trends
美国一位人口统计学家曾说，从目前美国的人口走势来看，这第三亿个人可能会是一个拉丁裔男婴。 |
| 10. | One demographer * has said the 300 millionth person would most likely be a latino boy given current u . s . population trends
美国一位人口统计学家曾说，从目前美国的人口走势来看，这第三亿个人可能会是一个拉丁裔男婴。 |
