[口语] “ 没心情 ” 不是 I don't have mood...

我没心情

I am not in the mood.

mood “心情，情绪”

be in the mood “有心情”

not be in the mood “没心情”

not in the mood for sth/to do sth. 没有心情做某事

例句:

I'm just not in the mood for a party tonight.

 我今晚就是没心情参加聚会。

另外，”没心情“ 还可以说：

I don't feel like it

我没心情；不想做

例句：

I don't feel like going to school. 

我没心情上学。