Deep fatigue could drag depression and moodiness in its wake.伴随深度疲劳而来的是心情沮丧和郁郁寡欢。

He suffered from moodiness. When he was happy he was very, very happy, but when he was gloomy he was morose.他情绪多变, 高兴时就高兴得不得了, 沮丧时就满脸阴郁。