I cannot help you ," says Speedy the Car. "I am too busy." I am very sad.

我帮不了你“,小跑车急速说，“我没空“，我很伤心。

耶鲁公开课 - 文学理论导论课程节选

and you can tell someone that this happens that you get upset, that you get sad or angry.

你可以告诉别人，这事发生的时候，你很泄气，你觉得很伤心或者很生气。

I get so upset 课堂 - SpeakingMax英语口语达人