The most common are major depressive disorder and dysthymic disorder .

最常见的是重度抑郁症和心境恶劣障碍。

Depression , dysthymic disorder , lack of interest and energy loss , is moderate depression and one of the characteristics of typical performance .

情绪低落、心境恶劣、缺乏兴趣和精力减退，是中度抑郁症典型表现和特征之一。