in a blue mood

in a blue mood的音标是[ɪn ə bluː maudɪd]，基本翻译是“情绪低落，心情郁闷”。速记技巧是：blue（蓝色）的谐音是“不乐”，可以理解为“不开心”。

“in a blue mood”的意思是情绪低落，这个词来源于英语中的blue，这个词本身来源于古英语blēo或blōu，意思是蓝色或沮丧的。

变化形式：在词形上，blue可以变为bluish，表示稍微有点儿忧郁的。

相关单词：

1. gloom - 暗淡，忧郁

2. melancholy - 忧郁，悲伤

3. dejected - 沮丧的，失望的

4. despondent - 失望的，沮丧的

5. blue-collar - 蓝领工人

6. blue-sky - 空想，幻想

7. blueprint - 蓝图，计划

8. blue-state - 蓝州，指民主党支持率高的州

9. blue-blood - 贵族，名门望族

10. blue-chip - 高价值股票，蓝筹股

这些单词都与“blue”这个颜色或情绪有关。在英语中，“blue”这个词经常用来形容人的情绪低落或沮丧，也可以用来描述某些事物或情况的不乐观或令人失望。

常用短语：

1. in a bad mood

2. in a good mood

3. be in a high mood

4. be in a low mood

5. be in a great mood

6. feel blue

7. be down in the dumps

例句：

1. I am feeling in a bad mood today, I don"t know why.

2. He was in a good mood when he arrived, but soon became frustrated.

3. After a hard day"s work, I am in a low mood and need to unwind.

4. She was in a great mood all day, singing and dancing around.

5. I feel blue when I am alone at home on a rainy day.

6. He is always down in the dumps when things don"t go his way.

英文小作文：

I am feeling in a blue mood today, I don"t know why. Maybe it"s because I have been working so hard lately and haven"t had much time to relax. I feel like I am missing out on life and all the beautiful things it has to offer. However, I know that I need to take some time for myself and recharge my batteries, otherwise I will burn out and become even more unhappy. So, I am going to take a long bath, watch some movies, and try to forget about all of my troubles for a while. Hopefully, this will help me feel better and give me the energy I need to tackle the challenges that lie ahead.