动词形式：disappoint
英文名词 “disappointment”（失望）对应的动词是 disappoint，意为“使失望；使落空；辜负（期望）”。
它是一个规则动词，过去式和过去分词均为 disappointed。
基本用法
disappoint someone：使某人失望
disappoint expectations/hopes/plans：辜负期望 / 希望落空 / 计划泡汤
常见例句
The movie disappointed me because the ending was too predictable.
We don’t want to disappoint our customers, so we always deliver on time.
His performance disappointed everyone who believed in him.
相关词汇
disappointed（形容词）：感到失望的（主语通常是人）
disappointing（形容词）：令人失望的（主语通常是事或物）
I was disappointed with the results.（我对结果感到失望。）
The results were disappointing.（结果令人失望。）