He was so disappointed that he drove off in a huff.

他失望至极，愤然开车离去。

《柯林斯英汉双解大词典》

youdao

How can I face Tom? He'll be so disappointed.

我怎样才能和汤姆谈呢？他会很失望的。

《牛津词典》

So when Kristi uses the truck to see her mother outside Washington, people are disappointed that she cannot stop to sell them cupcakes.

VOA: special.2010.04.12

But she couldn't get tickets. And she is so disappointed.

但她没能买到票，因此特别失望。

I'm sorry 课堂 - SpeakingMax英语口语达人

So yeah, I'm kind of, a little bit disappointed,

所以，是的，我有一点沮丧，

寻找幸福 - SpeakingMax英语口语达人

"Obviously, I am so disappointed, particularly for the fans who have been magnificent all season, " said Mowbray.

BBC: Baggies can bounce back - Mowbray

He was honest about the defeat, and said he understood why voters were so disappointed about the lack of job growth.

FORBES: Time for the Tin Man to Show Some Heart

Occasionally, the children are so disappointed to see lions snoozing, instead of standing proud, they throw soda cans to rouse them.

ECONOMIST: Meet Max, a 190-kilo crimebuster