I feel very disappointed that you are unable to support me on this project.

我很失望，你们不能在这个项目上支持我。

youdao

I know that you maybe feel hopeless on my performance in your English course. I am also very disappointed by myself.

我知道，你可能对我在英语课上的表现已经绝望了，我自己也对自己很失望。

youdao

I know that you maybe feel hopeless on my performance in your English course. I am also very disappointed by myself.

我知道，你可能对我在英语课上的表现已经绝望了，我自己也对自己很失望。

youdao