1. I'm so depressed.

偶很郁闷 .

2. I feel so upset.

我觉得很沮丧 .

3. I'm in a bad mood today. /

 I'm moody today.

偶今天心情不好 .

4. I feel kind of blue today.

我今天有点「郁闷」 .

5. I feel low today.

偶今天心情（有点）低落 .

6. I'm so down. 偶心情很低落 .

7. I'm a bit down in the mouth today.

 偶今天有点闷闷不乐的 .

8. I've been down in the dumps recently.

 偶最近很「郁闷」 .
9. I can't put my finger on what's wrong.

偶不晓得什么-地方不对劲儿 .
10. Sorry, I got up on the wrong side of the bed today.

抱歉，偶今天心情不好 .