杀伤率

例句：

1. 1. The accident had a high fatality rate.
   这次事故的死亡率很高。
2. 2. The research showed that the drug had a low toxicity rate.
   研究表明这种药物的毒性低。
3. 3. The military operation had a high casualty rate.
   这次军事行动的伤亡率很高。