[译] 我们大家对那个残忍的强盗感到愤慨。
[误] All of us are indignant at that cruel robber.

[正] All of us are indignant with that cruel robber.
[注] be indignant with 表示"对某人愤慨"，又如: Stella was indignant with her classmates who laughed at her. 斯特拉对嘲笑她的同学表示愤怒。be indignant at 表示"对某事愤慨，如: The innocent girl was indignant at the false accusation. 那位清白的姑娘对诬告感到愤慨。