全都卖完了，我感到很失望。

I'm disappointed (that) it was sold out.

《牛津词典》

当我看到成绩单时，我感到很失望。

I was disappointed when I saw the report card.

youdao

没等到车子我感到很失望。

I was disappointed of the car.

youdao

我感到很失望。

I feel so disappoint.

youdao

昨天我决定去野炊，不幸的是突然下雨了，我感到很失望。

Yesterday, I decided to go outside for picnic, but unfortunately, it suddenly rained.

youdao

我努力以正确的方式做事，出错的时候也感到很失望。

I try to do things the right way and am disappointed when they go wrong.

youdao

我得知她不在家，感到很失望。

I was disappointed at not finding her at home.

youdao

我对我的新自行车感到很失望。

I am very disappointed with my new bike.

youdao

我必须说我对它感到很失望。

I must say I'm disappointed in it.

youdao

摩丁侦探：我明白你的感觉。你也许对这事调查感到很失望。

DETECTIVE MODINE: I can see how you feel. You're probably disappointed in the investigation.

youdao

摩丁侦探：我明白你的感觉。你也许对这事调查感到很失望。

DETECTIVE MODINE: I can see how you feel. You're probably disappointed in the investigation.

youdao