The impact of dropping birth rate on developing countries may not be immediate but disastrous.
生育率下降对发展中国家的影响可能不是立竿见影的，而是灾难性的。
2
If anything we might have underestimated the rate and the impact of changes in the climate system.
我们甚至可能低估了气候系统变化的速度和影响。
3
The polarisation of household finances that makes the impact of a rate rise so uncertain also helps to explain why some MPC members feel the need to act.