aghast

形容词 aghast:

1. struck with fear, dread, or consternation
   同义词：appalled, dismayed, shocked

1. He stood aghast on hearing the news.
   他听到这消息吓呆了。
2. The robbers stood aghast at the sudden appearance of the policemen.
   警察人员的突然出现，使那几个盗贼大惊失色。