Mood is the expression of each of us. There are good moods and bad moods. We will be happy when we are in a good mood, and we will be depressed when we are in a bad mood. So mood is the specific expression of each of us.
心情是我们每一个人情绪的表现，有好的心情，还有坏的心情，心情好时我们会很开心，心情不好时我们会很沮丧，所以心情就是我们每一个人情绪的具体表现
