self-killing

例句：

1. 1. The decision to self-kill was a tragic mistake.
   决定自我毁灭是一个悲惨的错误。
2. 2. The scientist's research on self-killing viruses has been controversial.
   科学家关于自我毁灭病毒的研究一直颇具争议。
3. 3. The self-killing virus had already spread throughout the city.
   自我毁灭的病毒已经在整个城市传播开来。