坏心情的英文：
mood
n. 心境，情绪；心情不好，生气；喜怒无常；基调，色调；气氛
- in a reminiscent mood
以怀旧的心情. - She is always in that gloomy mood.
她总是那样情绪低沉。 - The mood of the music was almost funereal.
音乐的调子几乎像哀乐。 - She was in a bit of a mood this morning.
今天早晨她情绪欠佳。 - He is a man of moods.
他是一个喜怒无常的人。