プログレッシブ英和中辞典(第5版)の解説
as・ton・ished
/əstάniʃt | -tɔ́n-/
an astonished look
びっくりした顔つき
They were astonished at his having attacked [that he had attacked] the enemy without orders.
彼らは彼が命令も受けずに敵を攻撃したと知って驚いた
I am astonished to see you here.
驚いたね,ここで会うなんて