"心情不好"的英文是：
in bad mood ;
in bad temper ;
in a bad skin ;
out of one's plate ;
be in a mood；
feel down in the dumps；
in a bad mood；
in bad mood；
in a blue mood。
关于“心情不好”，我们可以这样延伸短语：
1、造成心情不好 Drop Wants Test Object.
2、她心情不好 She is under the weather.
3、如果心情不好 Mais Makuanga Is-Ang Hai.
4、昨天晚上心情不好 I was down last night.
5、一整天心情不好 A bad mood all day.
6、音乐心情不好瘫痪 Paralysis of music bad mood.
7、我今天心情不好 I'm in a bad mood today. / I'm moody today.
8、这几天心情不好 A bad mood these days.
9、或者心情不好 Or Feeling Bad.
关于“心情不好”，我们可以用举出这样的句子来表达：
1、所以当你感觉到它产生的效果时，为什么允许自己心情不好？
So why should you allow yourself to feel bad when you feel it’s effects?
2、除了这些，如果你常常心情不好，那么也许现在正是时候，该处理好你所承受的压力了。
Aside from all of this, if you're often in a bad mood it may be time to address your stress.
3、如果有人表现出症状，我们就会拜访他，并告诉此人我们听说他最近心情不好”。
If someone shows signs of problems we will visit them and say we have heard they've been upset recently.
参考资料
有道.有道[引用时间2018-4-13]
黄陂跑跑
