The odd ones out are America and Britain, which both have lots of women at work and fertility rates close to replacementlevel (with immigration making up the rest).
美国和英国则是例外，它们都有大量工作妇女，且生育率接近替代水平（不足部分有移民补充）。
2
From fertility that is almost as high as one can get to below replacementlevel in 22 years: social change can hardly happen faster.
花了22年将生育率降到等值更换水平，我们不得不说没有比这个更快的社会变革了。
3
The CASS study calls for a "prompt" change of policy to get the fertility rate up to around the "replacementlevel" of 2.1.