"We are not really upset about it, but what is psychologically disturbing is that people can be annoyed or feel insecure at the slightest differences that appear,"

VOA: standard.2010.02.24

when you feel upset or when you feel frustrated that something is not going the way that you wish it would.

当你觉得很失落，或者当你因为事情不像你期望的那样进展而感到沮丧时，你也可以使用这个句型。

I'm frustrated 课堂 - SpeakingMax英语口语达人

when you feel upset or when you feel frustrated that something is not going the way that you wish it would.

当你觉得很失落，或者当你因为事情不像你期望的那样进展而感到沮丧时，你也可以使用这个句型。

I'm frustrated 课堂 - SpeakingMax英语口语达人