be suprised at

• 惊讶于

be suprised at的用法和样例：

例句

1. We were all surprised at his fabulous memory.
   我们都惊讶于他惊人的记忆力。
2. Pull everything together, and you may be surprised at your own victories.
   集中所有的精力，你或许会惊讶于自己取得的胜利。