instantly       
adverb uk/ˈɪn.stənt.li/ us/ˈɪn.stənt.li/
B2 立即,马上
immediately
  Both drivers were killed instantly. 两名司机当即丧生。 
 Synonyms: forthwith 
 - More examples
- It's some comfort to his wife to know that he died instantly and didn't suffer.
- We can now communicate instantly with people on the other side of the world.
- She was knocked down by a car and killed instantly.
- She jumps on her children instantly if they're disobedient.
- The Eiffel Tower in Paris is an instantly recognizable landmark.