English主要词典
killer
Universal Words
noun
1 a person, an animal or a thing that kills:
Police are hunting his killer. * Heart disease is the biggest killer in Scotland. * an electric insect killer * The players lacked the killer instinct.
seealsoLADYKILLER, SERIALKILLER
2 (informal) something that is very difficult, very exciting or very skilful:
The exam was a real killer. * The new movie is a killer.