英汉双语例句-生物医药大词典

Demographers say a rate of 2.1 is needed to keep a population from declining.

中文意思：
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。

以下为相关句子列表(点击查看，可以看对应的解释）：

	Demographer William Frey of the Brookings Institution says immigrants are moving to cities like New York, Miami, Houston, Dallas and Los Angeles.			布鲁金斯研究所的人口学家佛瑞指出，移民正在迁入纽约、迈阿密、休斯顿、达拉斯和洛杉矶这样的大城市。
	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。
	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。
	Demographers and geographers attribute the slowing largely to the recession , which has hit California particularly hard, leaving its once-robust economy to bring up the rear of the national recovery.			人口学家和地理学家把缓慢的情形都归咎于不景气，加州情形尤为严重，以致加州一度蓬勃的经济竟然在全国复苏中落在各州之后。
	Demographers and geographers attribute the slowing largely to the recession, which has hit California particularly hard, leaving its once-robust economy to bring up the rear of the national recovery.			人口学家和地理学家把缓慢的情形都归咎于不景气，加州情形尤为严重，以致加州一度蓬勃的经济竟然在全国复苏中落在各州之后。
	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。
	Demographers say that no country's birth rate has ever recovered after dropping below 1.5, so governments need to do everything they can to avoid falling into a headlong decline.			人口统计学家们说，没有一个国家的生育率曾在低于1.5之后恢复过元气，所以政府需要不遗余力，以便避免落入一路下滑的趋势。
	Demographic change is another reason why the workforce is greying.			人口变化是劳动力老龄化的又一原因。
	Demographic pressures threaten to burden the next generation with heavy costs.			人口压力危及下一代的承重负担。
	Demographic trends suggest that the number of women going into employment is steadily increasing.			人口统计学的趋势提出女性将要入职的数量平稳的增长着。
	Demolish and remove all plant equipment and associated structures of the gas turbine units GT3, GT4, GT5 and GT6 inside Castle Peak Power Station.			清拆及运走位于新界屯门青山发电厂的三号、四号、五号及至六号涡轮机组的所有设施及有关结构。