If he is in a blue mood, what kind of mood is he in?

如果他现在心里很郁闷，应该要用一种什么样的情绪来形容呢？

But do yourself a favor by setting limits on your blue mood appropriate with the nature of the problem.

不过，你自己通过把你的悲伤的心情与问题的实质适当限制的方式来帮助自己。

As someone who has experienced sporadic periods of mild depression throughout life, I adopted Mollie after a friend convinced me that a dog was the perfect remedy for a blue mood.

当我经历了几段突发的轻度抑郁症期后，我收养了莫莉，因为朋友说服我狗是极好的治愈忧郁的手段。