disappointed about造句

Yes， I am disappointed about my failure.

No, I am not disappointed about my failure.

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

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.

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.