Dieters suffer from violent mood swings.

节食者们经受剧烈的情绪变化的折磨。

《柯林斯英汉双解大词典》

It's very common to have mood swings during pregnancy.

怀孕期间出现情绪波动是很常见的。

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Headaches, back aches, and mood swings are common.

头疼、背痛和情绪紊乱都很常见。

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So in classical music you can have rather wide mood swings.

所以，古典音乐会有很大的情绪起伏。

耶鲁公开课 - 聆听音乐课程节选

This petty infirmity and its accompanying mood swings got me mulling over ex-Hewlett-Packard chairman Patricia Dunn.

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Mood swings and irrational behavior used to be called simply that: mood swings and irrational behavior.

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It's a lush and breathless mix with extreme mood swings, from boundless joy to utter despair.

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