neonatal death rate

例句：

1. 1.The country's neonatal death rate is among the highest in the world.
   该国的新生儿死亡率是世界上最高的。
2. 2. The government has launched a campaign to reduce the neonatal death rate.
   政府已经发起了一场运动，以降低新生儿死亡率。
3. 3. The study found that the neonatal death rate had decreased by 5% since the implementation of the policy.
   研究发现，自从实施该政策以来，新生儿死亡率下降了5%。