有一个好心情用英语怎么说

"In a good mood" is the phrase used to describe having a positive and cheerful state of mind.

Source: The phrase "in a good mood" is a common idiomatic expression in English, used to describe a person's emotional state.

Example sentences and translations:

I woke up feeling great and now I'm in a good mood for the whole day.
我醒来时感觉很棒，现在我整天都有好心情。
She's always in a good mood when she has plans to go out with friends.
她有和朋友出去的计划时，总是心情非常好。
I try to stay in a good mood, no matter what's going on in my life.
我努力保持好心情，不管生活中发生了什么。