1.出生率
1.the officially recorded number of births in a particular year or place
1.With one of the world's lowest birth rates, Taiwan faces the prospect of a rapidly aging population without a young workforce to support it.
台湾的人口出生率居全世界最低行列，正面临人口的快速老龄化，缺乏年轻的劳动力来支撑社会发展。
2.One is the sheer size of that particular group. As birth rates have come down, subsequent generations have turned out to be a lot smaller.
相比起那个特定群体的庞大规模，随后出生的一代由于出生率的下降，规模就小得多了。
3.He said experts would typically expect to see live birth rates of around 15 per cent in a group of 40-year-old women.
他说，专家们通常希望40岁的女性患者能达到15%左右的活产率。
4.Rich countries are at the beginning of a demographic crisis, with birth rates starting to fall below replacement levels.
各个富国正处于人口危机的开端，出生率开始降至更替水平以下。
5.I had much earlier used economic theory to try to understand birth rates and family size.
更早的时候，我就尝试用经济理论理解出生率和家庭规模。
6.On a larger scale, during the 1990s there was a dramatic decline in teenage birth rates in the US, especially among African Americans.
在九十年代的时候，在美国，特别是黑人当中，青少年生育率发生了戏剧性的大规模下降。
7.A bulge of better-educated young people of working age is entering the job market and birth rates are beginning to decline.
越来越多受过良好教育的年轻非洲人进入了劳动力市场，而非洲的人口增长率开始有所下降。
8.Milan is a fast-ageing city in the country with one of the lowest birth rates in Europe.
米兰是意大利老龄化最快的城市，也是欧洲出生率最低的城市之一。
9.Instead, China's population challenges have shifted to low birth rates, an aging society and a widening gender imbalance.
相反，外国的人口危机已改变成出生率过低，社会老龄化加剧以及性别比例失衡。
10.Yet today's Italy has one of the world's lowest birth rates, thanks to near-universal defiance of Vatican teaching on contraception.
然而，今天的意大利是全球生育率最低的国家之一，这还多亏了对梵蒂冈避孕教义的近乎普遍的蔑视。