be astonished at

• 对 ... 感到惊愕

be astonished at的用法和样例：

例句

1. I was astonished at her remark.
   我对她的批评感到惊愕。
2. I confess to being astonished at this unexpected statement.
   我承认对这种未预料到的供词感到吃惊。