depressive disorder

1.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。

2.Depressive disorders are a heterogeneous group of conditions that share the common symptom of dysphoric mood.

抑郁患包括一组具有心情忧郁这一共同症状的若干情况。