[译] 她对这消息感到失望。
[误] She was disappointed by the news.

[正] She was disappointed at the news.
[注] “对某事……感到失望”，英文用“be disappointed at...”，“对某人失望”，英文是“be disappointed with...”。如：My father never showed it if he was disappointed with me. 父亲是不是对我失望，他从不表现出来。