killerKK [ˈkɪlɚ] ｜ /ˈkɪlɚ/
GEPT 中高級
B1noun
a person or animal that causes the death of another
The police are on the hunt for a serial killer who has murdered five people in the last year.
殺手；殺人者
C1noun
a thing or situation that is highly effective or successful
The new marketing strategy proved to be a killer, resulting in a significant increase in sales.
B2noun
a large predatory animal, typically with sharp teeth and claws, such as a shark, tiger, or crocodile
WRONG WITH EXCEPTION
B1noun
a type of whale with black and white markings and a large dorsal fin, which preys on other sea creatures
We were lucky to catch sight of a killer whale hunting a pod of dolphins.
殺人鯨；虎鯨