如果有人“没有心情”来做某事，那就意味着他或她不想做某事，他们对做某事没有兴趣。

If someone is "in no mood" to do something, it means that he or she does not want to do something, they're not interested in doing something.

youdao

当我告诉人们我太累了不想做某事时，我要求得到他们的尊重，不希望听到我一定可以做到的回答。

Or when I tell people I am too tired to do something, I ask that they respect that instead of telling me I can do it anyway.

youdao

Because it will allow you to express strong feelings about not liking something or not wanting something.

因为它能帮助你表达一种厌恶或不想做某事的强烈情绪。

I hate 课堂 - SpeakingMax英语口语达人

Or like I said, you can directly reference what you do not wish to do.

或者像我说的那样，你可以直接表态你不想做某事。

I'd rather 课堂 - SpeakingMax英语口语达人

So usually, it conveys a negative meaning, meaning that you don't want to do something

所以，通常它传达着一种负面的意思，表示你已经不想再做某事。

I've already 课堂 - SpeakingMax英语口语达人