killer
n person, animal or thing that kills 杀生的人、 动物或事物
Police are hunting her killer. 警方正在追捕杀害她的凶手.
Heroin is a killer. 海洛因是致命的毒品.
[attrib 作定语]
a killer disease 致命的疾病
Sharks have the killer instinct. 鲨鱼有嗜杀的本性.
Perhaps in those days I was. Pierre and I did have a very good time at the ball. But that was the last moment of happiness in our lives. That night everything changed.