用disappointed about造句子，“disappointed about”造句

Yes， I am disappointed about my failure.

The son was very disappointed about his father's response again, however, he did not know that his father was pretending to be obedient to confuse the gangsters.

Many people feel very disappointed about Xiang Yu's failure to win the battle of Liu Bang.

Like Mr. Swift of the State of Liberty Club, Fernando Riano, who dresses in a Statue of Liberty outfit as a street performer near Battery Park, said he was disappointed about the construction.

No, I am not disappointed about my failure.