Since dolphins rid their bodies of the compounds rapidly once exposure ceases, their mortality rate should decline rapidly if such boat paints are banned.
The average yearly decline of stillbirths over this period was 1.1%, slower than the decline for child or maternal mortality.
期间的年平均死产下降率为1.1%，比儿童或产妇死亡率的下降速度要慢。
3
Many people in many countries and organizations have been working hard to make this year, 2005, mark a decisive shift towards a decline in mother and child mortality.