あっと おどろ
atto odoroku

Godan Verb (ku)
Expression

1. to get a big surprise; to be astonished; to have one's breath taken away; to be taken aback

その真実 しんじつ かれをあっと おどろかせた。
sono shinjitsuwa kareo atto odorokaseta.
The truth knocked the breath out of him.
Other forms: