動詞 flabbergast:

1. overcome with amazement
   同義詞：flabbergast, boggle, bowl over

形容詞 flabbergasted:

1. as if struck dumb with astonishment and surprise
   同義詞：dumbfounded, dumfounded, stupefied, thunderstruck, dumbstruck, dumbstricken

1. He was flabbergasted when he heard that his friend had been accused of murder.
   他聽說朋友被控謀殺罪，大吃一驚。