對…失望 feel upset
be disappointed in sb/sth
I\\\'m disappointed in her.
我對她感到失望。
The students are disappointed in their new maths teacher.
學生們對新來的數學老師感到失望。
We were disappointed in our hopes.
我們失望了。
He is disappointed in his new car.
他對新車感到失望。
I am greatly disappointed in the result.
我對這結果大失所望。
They were disappointed in the outcome of his experiment.
他們對于他的實驗結果感到失望。